CN110730058B - Subframe processing method and device - Google Patents

Subframe processing method and device Download PDF

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Publication number
CN110730058B
CN110730058B CN201910888912.XA CN201910888912A CN110730058B CN 110730058 B CN110730058 B CN 110730058B CN 201910888912 A CN201910888912 A CN 201910888912A CN 110730058 B CN110730058 B CN 110730058B
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carrier
subframe
channel
symbols
pdsch
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CN110730058A (en
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李秉肇
权威
张戬
胡振兴
杨晓东
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and device for processing sub-frame, a terminal can determine the special sub-frame containing all or part of gap symbols occupied by the channel sensing duration in the discontinuous auxiliary carrier according to the obtained maximum continuous occupation duration of the channel of the discontinuous auxiliary carrier, the channel sensing duration, and the initial reference time point of the channel occupation and/or the initial reference time point of the channel sensing of the discontinuous auxiliary carrier, and the other symbols except the gap symbol in the special subframe are used as the symbols which can be occupied by the PDCCH and/or the PDSCH, and, the PDCCH and/or PDSCH in the special sub-frame are received or decoded accordingly according to the symbols that the PDCCH and/or PDSCH can occupy, therefore, the problem that the resource utilization rate is low due to the fact that gap symbols caused by CCA cannot be eliminated from the whole subframe at present is solved, and the channel utilization rate under the condition that the channel is not occupied continuously is improved.

Description

Subframe processing method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a subframe processing method and device.
Background
In an LTE (Long Term Evolution ) system or an LTE-a (LTE-Advanced, enhanced Long Term Evolution) system, in order to improve the uplink and downlink peak rates of the system, a CA (Carrier Aggregation) technology is introduced, that is, a plurality of continuous or discontinuous carriers are aggregated together, and simultaneously serve a UE (User Equipment) when necessary, so as to provide a required rate. Through the CA technology, the resource utilization rate can be maximized, and discrete spectrum resources can be effectively utilized.
Specifically, in the CA technology, a network side device such as a base station may configure multiple working carriers for each UE at the same time, where one carrier is a primary carrier and the rest of the carriers are secondary carriers. Moreover, in order to maximize resource utilization, each secondary carrier may be configured on an unlicensed spectrum. Since the unlicensed spectrum generally refers to a public spectrum, that is, a spectrum that can be used by any organization or person, it is generally necessary to follow a listen-before-send rule when using the unlicensed spectrum, that is, when the spectrum is sensed to be idle, signals can be transmitted on the unlicensed spectrum. That is, if the secondary carrier is deployed on the unlicensed spectrum, the secondary carrier is also used according to the rule of listen before transmit, so that the transmission of the secondary carrier may be discontinuous.
Specifically, for a discontinuous carrier deployed on a frequency spectrum such as an unlicensed spectrum, a base station may generally evaluate whether a Channel occupied by the discontinuous carrier is idle through CCA (Clear Channel Assessment) so as to determine whether the Channel may be used. Generally, the minimum length of the CCA duration (also referred to as channel sensing duration or channel estimation duration) occupied by the base station for CCA is not less than 20s, and the maximum length of the duration for each time that the base station transmits a signal by using the discontinuous carrier cannot exceed 13ms (that is, the maximum length of the continuous channel occupancy duration of the discontinuous carrier cannot exceed 13 ms). Furthermore, if the base station determines that the channel has not been used by other devices, the base station may periodically occupy the channel, wherein the CCA may be used to separate the occupation time of the channel from each other.
As can be seen from the above, for any UE, when there is a discontinuous carrier in a plurality of working carriers configured for the UE, the discontinuous carrier may have a duration (i.e., a CCA duration) of at least 20s and cannot transmit any signal, although the CCA duration may occupy less than one symbol of a subframe, since the UE does not know the time point at which the CCA occurs, the UE cannot exclude the symbol occupied by the CCA from the whole subframe in which the CCA is located, and 14 symbols of the whole subframe in which the CCA is located cannot transmit signals, thereby reducing the utilization rate of resources.
Disclosure of Invention
The embodiment of the invention provides a subframe processing method and equipment, which are used for solving the problem of low resource utilization rate caused by the fact that a gap symbol caused by CCA cannot be eliminated from the whole subframe at present.
In a first aspect, a network-side device is provided, including:
an information determining module, configured to determine first carrier configuration information of a first auxiliary carrier of a terminal, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes an initial reference time point of channel occupancy of the first auxiliary carrier and/or an initial reference time point of channel sensing of the first auxiliary carrier;
an information sending module, configured to send the first carrier configuration information determined by the information determining module to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information: determining a special subframe in the first secondary carrier, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration; and using other symbols except the gap symbol in the special subframe as symbols which can be occupied by a PDCCH (Physical Downlink Control Channel) and/or a PDSCH (Physical Downlink Shared Channel), and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the network side device further includes a symbol specifying module:
the symbol assigning module is configured to, before sending the determined first carrier configuration information to the terminal, assign a PDSCH starting symbol position to the first secondary carrier if it is determined that the first secondary carrier is a cross-scheduling carrier;
the information sending module is specifically configured to, when it is determined that the first auxiliary carrier is a cross-scheduling carrier, carry symbol position indication information used for indicating a PDSCH starting symbol position in the first carrier configuration information and send the symbol position indication information to the terminal, so that the terminal determines, according to the first carrier configuration information, a special subframe in the first auxiliary carrier, and then, according to the PDSCH starting symbol position indicated in the symbol position indication information, uses each non-gap symbol after the PDSCH starting symbol position in the special subframe as a symbol that can be occupied by the PDSCH.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the network side device further includes a channel monitoring module:
the channel monitoring module is configured to monitor whether a channel corresponding to a first auxiliary carrier is occupied by other network side devices in a time period corresponding to the channel sensing duration after determining first carrier configuration information of the first auxiliary carrier;
the information sending module is further configured to send a carrier release message to the terminal when the monitoring result of the channel monitoring module is yes, so that the terminal stops data reception or decoding operation on the first auxiliary carrier according to the carrier release message.
With reference to the first aspect, or the first or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the information sending module is specifically configured to send the first carrier configuration information determined by the information determining module to the terminal through any one or more of the following signaling: RRC (Radio resource control Protocol) messages, MAC (Media access control) layer PDU (Protocol Data Unit) messages, or physical layer signaling.
With reference to the first aspect or any implementation manner of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the information sending module is specifically configured to send a channel occupancy start time point and/or a channel sensing start time point in the first carrier configuration information to the terminal at any time point after the first secondary carrier starts to occupy a channel; and when the first auxiliary carrier is configured for the terminal, sending the maximum continuous channel occupation duration and the channel sensing duration of the first auxiliary carrier in the first carrier configuration information to the terminal.
With reference to the first aspect or any implementation manner of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the information determining module is further configured to determine second carrier configuration information of the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first Secondary carrier can indicate that the first Secondary carrier contains a common channel, where the common channel includes any one or more of a PBCH (Physical broadcast channel), a PSS (Primary synchronization channel), an SSS (Secondary synchronization channel), and a reference signal;
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
the information sending module is further configured to send the second carrier configuration information determined by the information determining module to the terminal, so that the terminal performs the following operations according to the received second carrier configuration information:
judging whether the first auxiliary carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In a second aspect, a network-side device is provided, including:
an information determining module, configured to determine first carrier configuration information of a first carrier of a terminal, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of the first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier;
second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
an information sending module, configured to send the first carrier configuration information determined by the information determining module to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In a third aspect, a terminal is provided, including:
an information obtaining module, configured to obtain first carrier configuration information of a first auxiliary carrier, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes an initial reference time point of channel occupancy of the first auxiliary carrier and/or an initial reference time point of channel sensing;
a subframe determining module, configured to determine a special subframe in the first auxiliary carrier according to the first carrier configuration information acquired by the information acquiring module, where the special subframe includes all or part of gap symbols, and the gap symbols are symbols that are occupied by all or part of the channel sensing duration;
and the subframe processing module is used for taking the other symbols except the gap symbols in the special subframe determined by the subframe determining module as the symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
With reference to the third aspect, in a first possible implementation manner of the third aspect, the subframe determining module is specifically configured to determine, according to a maximum duration of continuous channel occupancy, a channel sensing duration, and a starting reference time point of channel occupancy and/or a starting reference time point of channel sensing included in the first carrier configuration information, a finishing time point of channel occupancy or a starting time point of channel sensing of the first secondary carrier, use M symbols after the determined finishing time point of channel occupancy or the determined starting time point of channel sensing as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe; the M symbols are determined by the channel sensing duration, and M is a positive integer greater than or equal to 1.
With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, if the channel occupancy restriction of the first secondary carrier ends at a subframe boundary, then:
the subframe determining module is specifically configured to determine a channel occupation end time point or a channel sensing start time point of the first auxiliary carrier according to the maximum channel continuous occupation time, the channel sensing time, the channel occupation start reference time point and/or the channel sensing start reference time point included in the first carrier configuration information, and subframe boundary information, and to use M symbols after the determined channel occupation end time point or the determined channel sensing start time point as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe.
With reference to the third aspect, or the first or second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the subframe processing module is specifically configured to, if it is determined that the first carrier configuration information carries symbol position indication information for indicating a starting symbol position of a PDSCH, use, as a symbol that can be occupied by the PDSCH, each non-gap symbol after the starting symbol position of the PDSCH in the special subframe according to the starting symbol position of the PDSCH indicated in the symbol position indication information; alternatively, the first and second electrodes may be,
specifically, the method is configured to read a physical control format indicator channel (PFICH) from a 1 st symbol of the special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH; alternatively, the first and second electrodes may be,
specifically, the method is configured to read the PFICH from the M +1 th symbol of the special subframe, determine a symbol that can be occupied by the PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH.
With reference to the third aspect or any implementation manner of the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the terminal further includes an information monitoring module:
the information monitoring module is used for carrying out energy detection on any gap symbol; and/or, monitoring whether a carrier release message for the first secondary carrier is received from a network side device;
the subframe processing module is further configured to, for any gap symbol, stop receiving or decoding a special subframe including all or part of the gap symbol when it is determined that the energy of the gap symbol detected by the information monitoring module is higher than a set energy threshold; or, the information monitoring module is further configured to stop the data reception or decoding operation performed on the first secondary carrier when the information monitoring module monitors that a carrier release message for the first secondary carrier is received from a network side device.
With reference to the third aspect or any implementation manner of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the first carrier configuration information acquired by the information acquisition module is sent to the terminal by a network side device.
With reference to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the first carrier configuration information acquired by the information acquisition module is sent to the terminal by a network side device by using any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling.
With reference to the fifth or sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the channel occupancy initial reference time point and/or the channel sensing initial reference time point in the first carrier configuration information acquired by the information acquisition module is sent to the terminal by the network side device at any time point after the first secondary carrier starts to occupy the channel;
the maximum duration of continuous channel occupation and the channel sensing duration of the first auxiliary carrier in the first carrier configuration information acquired by the information acquisition module are sent to the terminal when the network side device configures the first auxiliary carrier for the terminal.
With reference to the third aspect or any implementation manner of the first to seventh possible implementation manners of the third aspect, in an eighth possible implementation manner of the third aspect, the information obtaining module is further configured to receive second carrier configuration information, which is sent by a network side device and is for the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
the subframe processing module is further configured to determine whether the first auxiliary carrier includes a common channel according to the second carrier configuration information, and when the determination result is yes, exclude symbols occupied by the common channel from symbols that can be occupied by a PDCCH and/or a PDSCH in a subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
the second carrier configuration information is used for determining whether the first auxiliary carrier uses the common channel in the extended format, and when the determination result is yes, symbols occupied by the common channel in the extended format are excluded from symbols capable of being occupied by the PDCCH and/or the PDSCH in the subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
With reference to the eighth possible implementation manner of the third aspect, in a ninth possible implementation manner of the third aspect, the subframe processing module is specifically configured to determine that the first secondary carrier does not include a common channel if it is determined that the second carrier configuration information includes the first indication information or it is determined that the second carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that the first secondary carrier includes a common channel if it is determined that the second carrier configuration information does not include the first indication information or it is determined that the second carrier configuration information includes the system broadcast information.
With reference to the eighth or ninth possible implementation manner of the third aspect, in a tenth possible implementation manner of the third aspect, the subframe processing module is specifically configured to determine, if it is determined that the second carrier configuration information includes the second indication information, a common channel using an extended format in the first secondary carrier; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that the first secondary carrier uses a common channel in a non-extended format if it is determined that the second carrier configuration information does not include the second indication information.
In a fourth aspect, a terminal is provided, including:
an information receiving module, configured to receive first carrier configuration information for a first carrier sent by a network side device, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of a first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier;
second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
a subframe processing module, configured to determine whether the first carrier includes a common channel according to the first carrier configuration information, and if the determination result is yes, when receiving or decoding a PDCCH and/or a PDSCH on a subframe in the first carrier, exclude symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the subframe processing module is specifically configured to determine that the first carrier does not include a common channel if it is determined that the first carrier configuration information includes the first indication information or it is determined that the first carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that the first carrier includes a common channel if it is determined that the first carrier configuration information does not include the first indication information or it is determined that the first carrier configuration information includes the system broadcast information.
With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the subframe processing module is specifically configured to determine, if it is determined that the first carrier configuration information includes the second indication information, a common channel in the first carrier, where the common channel uses an extended format; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that a common channel in a non-extended format is used in the first carrier if it is determined that the first carrier configuration information does not include the second indication information.
In a fifth aspect, a network-side device is provided, including:
the processor is configured to determine first carrier configuration information of a first auxiliary carrier of a terminal, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes an initial reference time point of channel occupancy of the first auxiliary carrier and/or an initial reference time point of channel sensing of the first auxiliary carrier;
a transmitter, configured to send the first carrier configuration information determined by the processor to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information: determining a special subframe in the first secondary carrier, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration; and using other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the processor is further configured to, before sending the determined first carrier configuration information to the terminal, assign a PDSCH starting symbol position to the first secondary carrier if the first secondary carrier is determined to be a cross-scheduled carrier;
the transmitter is specifically configured to, when it is determined that the first auxiliary carrier is a cross-scheduling carrier, carry symbol position indication information used for indicating a PDSCH starting symbol position in the first carrier configuration information and transmit the symbol position indication information to the terminal, so that the terminal determines, according to the first carrier configuration information, a special subframe in the first auxiliary carrier, and uses, according to the PDSCH starting symbol position indicated in the symbol position indication information, each non-gap symbol after the PDSCH starting symbol position in the special subframe as a symbol that can be occupied by the PDSCH.
With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the network side device further includes a monitor:
the monitor is configured to monitor whether a channel corresponding to a first auxiliary carrier is occupied by other network side devices within a time period corresponding to the channel sensing duration after determining first carrier configuration information of the first auxiliary carrier;
the transmitter is further configured to send a carrier release message to the terminal when the monitoring result of the monitor is yes, so that the terminal stops data reception or decoding operation on the first secondary carrier according to the carrier release message.
With reference to the fifth aspect, or the first or second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the transmitter is specifically configured to send the first carrier configuration information determined by the processor to the terminal through any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling.
With reference to the fifth aspect or any implementation manner of the first to third possible implementation manners of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the transmitter is specifically configured to send the channel occupancy start time point and/or the channel sensing start time point in the first carrier configuration information to the terminal at any time point after the first secondary carrier starts to occupy the channel; and when the first auxiliary carrier is configured for the terminal, sending the maximum continuous channel occupation duration and the channel sensing duration of the first auxiliary carrier in the first carrier configuration information to the terminal.
With reference to the fifth aspect or any implementation manner of the first to fourth possible implementation manners of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the processor is further configured to determine second carrier configuration information of the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
the transmitter is further configured to send the second carrier configuration information determined by the processor to the terminal, so that the terminal performs the following operations according to the received second carrier configuration information:
judging whether the first auxiliary carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In a sixth aspect, a network-side device is provided, including:
a processor, configured to determine first carrier configuration information of a first carrier of a terminal, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of the first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier;
second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
a transmitter, configured to send the first carrier configuration information determined by the processor to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In a seventh aspect, a terminal is provided, including:
a receiver, configured to obtain first carrier configuration information of a first auxiliary carrier, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes an initial reference time point of channel occupancy of the first auxiliary carrier and/or an initial reference time point of channel sensing;
a processor, configured to determine a special subframe in the first secondary carrier according to the first carrier configuration information obtained by the receiver, where the special subframe includes all or part of gap symbols, and the gap symbols are symbols that are occupied by all or part of the channel sensing duration; and taking the determined other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the processor is specifically configured to determine, according to a maximum duration of continuous channel occupancy, a channel sensing duration, and a starting reference time point of channel occupancy and/or a starting reference time point of channel sensing included in the first carrier configuration information, an ending time point of channel occupancy or a starting time point of channel sensing of the first secondary carrier, use M symbols after the determined ending time point of channel occupancy or the determined starting time point of channel sensing as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe; the M symbols are determined by the channel sensing duration, and M is a positive integer greater than or equal to 1.
With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, if the channel occupancy restriction of the first secondary carrier ends at a subframe boundary, then:
the processor is specifically configured to determine a channel occupation end time point or a channel sensing start time point of the first auxiliary carrier according to a maximum channel continuous occupation time length, a channel sensing time length, a channel occupation start reference time point and/or a channel sensing start reference time point included in the first carrier configuration information, and subframe boundary information, and to use M symbols after the determined channel occupation end time point or the determined channel sensing start time point as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe.
With reference to the seventh aspect, or the first or second possible implementation manner of the seventh aspect, in a third possible implementation manner of the seventh aspect, the processor is specifically configured to, if it is determined that the first carrier configuration information carries symbol position indication information for indicating a starting symbol position of a PDSCH, use, as a symbol that can be occupied by the PDSCH, each non-gap symbol after the starting symbol position of the PDSCH in the special subframe according to the starting symbol position of the PDSCH indicated in the symbol position indication information; alternatively, the first and second electrodes may be,
specifically, the method is configured to read a physical control format indicator channel (PFICH) from the 1 st symbol of the special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH; alternatively, the first and second electrodes may be,
specifically, the method is configured to read the PFICH from the M +1 th symbol of the special subframe, determine a symbol that can be occupied by the PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH.
With reference to the seventh aspect or any implementation manner of the first to third possible implementation manners of the seventh aspect, in a fourth possible implementation manner of the seventh aspect, the terminal further includes a monitor:
the monitor is used for carrying out energy detection on any gap symbol; and/or, monitoring whether a carrier release message for the first secondary carrier is received from a network side device;
the processor is further used for stopping receiving or decoding a special subframe containing all or part of the gap symbols when the energy of the gap symbols detected by the monitor is determined to be higher than a set energy threshold value aiming at any gap symbol; or, the apparatus is further configured to stop the data reception or decoding operation performed on the first secondary carrier when the monitor monitors that a carrier release message for the first secondary carrier is received from a network side device.
With reference to the seventh aspect or any implementation manner of the first to fourth possible implementation manners of the seventh aspect, in a fifth possible implementation manner of the seventh aspect, the first carrier configuration information acquired by the receiver is sent to the terminal by a network side device.
With reference to the fifth possible implementation manner of the seventh aspect, in a sixth possible implementation manner of the seventh aspect, the first carrier configuration information acquired by the receiver is sent to the terminal by a network side device by using any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling.
With reference to the fifth or sixth possible implementation manner of the seventh aspect, in a seventh possible implementation manner of the seventh aspect, the channel occupancy start reference time point and/or the channel sensing start reference time point in the first carrier configuration information acquired by the receiver is sent to the terminal by the network side device at any time point after the first secondary carrier starts to occupy the channel;
the maximum duration of continuous channel occupancy of the first auxiliary carrier in the first carrier configuration information and the channel sensing duration obtained by the receiver are sent to the terminal when the network side device configures the first auxiliary carrier for the terminal.
With reference to the seventh aspect or any implementation manner of the first to seventh possible implementation manners of the seventh aspect, in an eighth possible implementation manner of the seventh aspect, the receiver is further configured to receive second carrier configuration information, which is issued by a network side device and is for the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
the processor is further configured to determine whether the first auxiliary carrier includes a common channel according to the second carrier configuration information, and when the determination result is yes, exclude symbols occupied by the common channel from symbols that can be occupied by a PDCCH and/or a PDSCH in a subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
the second carrier configuration information is used for determining whether the first auxiliary carrier uses the common channel in the extended format, and when the determination result is yes, symbols occupied by the common channel in the extended format are excluded from symbols capable of being occupied by the PDCCH and/or the PDSCH in the subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
With reference to the eighth possible implementation manner of the seventh aspect, in a ninth possible implementation manner of the seventh aspect, the processor is specifically configured to determine that the first secondary carrier does not include a common channel if it is determined that the second carrier configuration information includes the first indication information or it is determined that the second carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that the first secondary carrier includes a common channel if it is determined that the second carrier configuration information does not include the first indication information or it is determined that the second carrier configuration information includes the system broadcast information.
With reference to the eighth or ninth possible implementation manner of the seventh aspect, in a tenth possible implementation manner of the seventh aspect, the processor is specifically configured to determine, if it is determined that the second carrier configuration information includes the second indication information, a common channel using an extended format in the first secondary carrier; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that the first secondary carrier uses a common channel in a non-extended format if it is determined that the second carrier configuration information does not include the second indication information.
In an eighth aspect, there is provided a terminal comprising:
a receiver, configured to receive first carrier configuration information for a first carrier sent by a network side device, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of a first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier;
second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
a processor, configured to determine whether the first carrier includes a common channel according to the first carrier configuration information, and if the determination result is yes, when receiving or decoding a PDCCH and/or a PDSCH on a subframe in the first carrier, exclude symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, the processor is specifically configured to determine that the first carrier does not include a common channel if it is determined that the first carrier configuration information includes the first indication information or it is determined that the first carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that the first carrier includes a common channel if it is determined that the first carrier configuration information does not include the first indication information or it is determined that the first carrier configuration information includes the system broadcast information.
With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner of the eighth aspect, the processor is specifically configured to determine a common channel using an extended format in the first carrier if it is determined that the first carrier configuration information includes the second indication information; alternatively, the first and second electrodes may be,
specifically, the method is configured to determine that a common channel in a non-extended format is used in the first carrier if it is determined that the first carrier configuration information does not include the second indication information.
In a ninth aspect, a subframe processing method is provided, which includes:
network side equipment determines first carrier configuration information of a first auxiliary carrier of a terminal, wherein the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information comprises the maximum continuous channel occupation duration and the channel sensing duration of the first auxiliary carrier, and further comprises a starting reference time point of the channel occupation of the first auxiliary carrier and/or a starting reference time point of the channel sensing of the first auxiliary carrier;
sending the determined first carrier configuration information to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information: determining a special subframe in the first secondary carrier, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration; and using other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, before sending the determined first carrier configuration information to the terminal, the method further includes:
if the first auxiliary carrier is determined to be a cross-scheduling carrier, assigning a PDSCH initial symbol position for the first auxiliary carrier;
sending the determined first carrier configuration information to the terminal, including:
when the first auxiliary carrier is determined to be a cross-scheduling carrier, carrying symbol position indication information for indicating a PDSCH starting symbol position in the first carrier configuration information and sending the symbol position indication information to the terminal, so that after the terminal determines a special subframe in the first auxiliary carrier according to the first carrier configuration information, according to the PDSCH starting symbol position indicated in the symbol position indication information, each non-gap symbol after the PDSCH starting symbol position in the special subframe is used as a symbol which can be occupied by the PDSCH.
With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in a second possible implementation manner of the ninth aspect, after determining the first carrier configuration information of the first secondary carrier, the method further includes:
monitoring whether a channel corresponding to the first auxiliary carrier is occupied by other network side equipment in a time period corresponding to the channel monitoring duration;
and if the monitoring result is yes, sending a carrier release message to the terminal so that the terminal stops data receiving or decoding operation on the first auxiliary carrier according to the carrier release message.
With reference to the ninth aspect or the first or second possible implementation manner of the ninth aspect, in a third possible implementation manner of the ninth aspect, the sending the determined first carrier configuration information to the terminal includes:
sending the determined first carrier configuration information to the terminal through any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling.
With reference to the ninth aspect or any implementation manner of the first to third possible implementation manners of the ninth aspect, in a fourth possible implementation manner of the ninth aspect, the sending the determined first carrier configuration information to the terminal includes:
sending a channel occupation starting time point and/or a channel sensing starting time point in the first carrier configuration information to the terminal at any time point after the first auxiliary carrier starts to occupy the channel;
and when the first auxiliary carrier is configured for the terminal, sending the maximum continuous occupied duration of the channel of the first auxiliary carrier and the channel sensing duration in the first carrier configuration information to the terminal.
With reference to the ninth aspect or any implementation manner of the first to fourth possible implementation manners of the ninth aspect, in a fifth possible implementation manner of the ninth aspect, the method further includes:
determining second carrier configuration information of the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
sending the determined second carrier configuration information to the terminal, so that the terminal performs the following operations according to the received second carrier configuration information:
judging whether the first auxiliary carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In a tenth aspect, a subframe processing method is provided, including:
the method comprises the following steps that network side equipment determines first carrier configuration information of a first carrier of a terminal, wherein the first carrier configuration information comprises any one or more of the following information:
system broadcast information of the first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier;
second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
sending the determined first carrier configuration information to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In an eleventh aspect, a subframe processing method is provided, which includes:
a terminal acquires first carrier configuration information of a first auxiliary carrier, wherein the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information comprises the maximum continuous channel occupation duration and the channel sensing duration of the first auxiliary carrier and also comprises an initial channel occupation reference time point and/or an initial channel sensing reference time point of the first auxiliary carrier;
determining a special subframe in the first auxiliary carrier according to the acquired first carrier configuration information, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration;
and taking other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
With reference to the eleventh aspect, in a first possible implementation manner of the eleventh aspect, the determining a special subframe in the first secondary carrier according to the acquired first carrier configuration information includes:
determining a channel occupation end time point or a channel interception start time point of the first auxiliary carrier according to a channel continuous occupation maximum time length, a channel interception time length, and a channel occupation start reference time point and/or a channel interception start reference time point included in the first carrier configuration information, taking the determined channel occupation end time point or M symbols after the determined channel interception start time point as the gap symbols, and taking a subframe containing all or part of the M symbols as the special subframe; the M symbols are determined by the channel sensing duration, and M is a positive integer greater than or equal to 1.
With reference to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in a second possible implementation manner of the eleventh aspect, if the channel occupancy limitation of the first secondary carrier ends at a subframe boundary, the determining, according to the obtained first carrier configuration information, a special subframe in the discontinuous secondary carrier includes:
determining a channel occupation ending time point or a channel interception starting time point of the first auxiliary carrier according to the maximum continuous occupation time length of the channel, the channel interception time length, the channel occupation starting reference time point and/or the channel interception starting reference time point and subframe boundary information included in the first carrier configuration information, taking the determined channel occupation ending time point or M symbols after the determined channel interception starting time point as the gap symbols, and taking a subframe containing all or part of the M symbols as the special subframe.
With reference to the eleventh aspect or the first or second possible implementation manner of the eleventh aspect, in a third possible implementation manner of the eleventh aspect, regarding other symbols in the special subframe except the gap symbol as symbols that can be occupied by a PDCCH and/or a PDSCH includes:
if it is determined that the first carrier configuration information carries symbol position indication information for indicating a starting symbol position of a PDSCH, taking each non-gap symbol after the starting symbol position of the PDSCH in the special subframe as a symbol which can be occupied by the PDSCH according to the starting symbol position of the PDSCH indicated in the symbol position indication information; alternatively, the first and second electrodes may be,
reading a PFICH from the 1 st symbol of the special subframe, determining symbols which can be occupied by a PDCCH according to the PFICH, and taking other symbols except the gap symbols and the symbols which can be occupied by the PDCCH in the special subframe as the symbols which can be occupied by the PDSCH; alternatively, the first and second electrodes may be,
reading a PFICH from the M +1 th symbol of the special subframe, determining a symbol which can be occupied by a PDCCH according to the PFICH, and taking other symbols except the gap symbol and the symbol which can be occupied by the PDCCH in the special subframe as the symbols which can be occupied by the PDSCH.
With reference to the eleventh aspect or any one of the first to third possible implementation manners of the eleventh aspect, in a fourth possible implementation manner of the eleventh aspect, the method further includes:
for any gap symbol, carrying out energy detection on the gap symbol; and stopping receiving or decoding a special subframe containing all or part of the gap symbols when the detected energy is determined to be higher than a set energy threshold; and/or the presence of a gas in the gas,
and monitoring whether a carrier release message aiming at the first auxiliary carrier from network side equipment is received, and if so, stopping data receiving or decoding operation on the first auxiliary carrier.
With reference to the eleventh aspect or any implementation manner of the first to fourth possible implementation manners of the eleventh aspect, in a fifth possible implementation manner of the eleventh aspect, the first carrier configuration information is sent to the terminal by a network side device.
With reference to the fifth possible implementation manner of the eleventh aspect, in a sixth possible implementation manner of the eleventh aspect, the first carrier configuration information is sent to the terminal by a network side device by using any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling.
With reference to the fifth or sixth possible implementation manner of the eleventh aspect, in a seventh possible implementation manner of the eleventh aspect, the channel occupancy start reference time point and/or the channel sensing start reference time point in the first carrier configuration information is sent by the network side device to the terminal at any time point after the first secondary carrier starts to occupy the channel;
the maximum duration of continuous channel occupancy of the first auxiliary carrier in the first carrier configuration information and the channel sensing duration are sent to the terminal when the network side device configures the first auxiliary carrier for the terminal.
With reference to the eleventh aspect or any one of the first to seventh possible implementation manners of the eleventh aspect, in an eighth possible implementation manner of the eleventh aspect, the method further includes:
receiving second carrier configuration information for the first secondary carrier issued by a network side device, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
judging whether the first auxiliary carrier contains a common channel or not according to the second carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier according to the second carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
With reference to the eighth possible implementation manner of the eleventh aspect, in a ninth possible implementation manner of the eleventh aspect, the determining whether the first secondary carrier includes a common channel according to the second carrier configuration information includes:
if it is determined that the second carrier configuration information includes the first indication information or it is determined that the second carrier configuration information does not include the system broadcast information, determining that the first secondary carrier does not include a common channel; alternatively, the first and second electrodes may be,
and if the second carrier configuration information is determined not to contain the first indication information or the second carrier configuration information contains the system broadcast information, determining that the first auxiliary carrier contains a common channel.
With reference to the eighth or ninth possible implementation manner of the eleventh aspect, in a tenth possible implementation manner of the eleventh aspect, the determining whether the first secondary carrier uses a common channel in an extended format according to the second carrier configuration information includes:
if the second carrier configuration information is determined to include the second indication information, determining a common channel using an extended format in the first secondary carrier; alternatively, the first and second electrodes may be,
and if the second carrier configuration information is determined to include the second indication information, determining that the common channel in the non-extended format is used in the first secondary carrier.
In a twelfth aspect, a subframe processing method is provided, including:
the terminal receives first carrier configuration information aiming at a first carrier sent by network side equipment, wherein the first carrier configuration information comprises any one or more of the following information:
system broadcast information of a first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals;
first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier;
second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
judging whether the first carrier contains a common channel or not according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
With reference to the twelfth aspect, in a first possible implementation manner of the twelfth aspect, the determining, according to the first carrier configuration information, whether the first carrier includes a common channel includes:
if it is determined that the first carrier configuration information includes the first indication information or it is determined that the first carrier configuration information does not include the system broadcast information, determining that the first carrier does not include a common channel; alternatively, the first and second electrodes may be,
if it is determined that the first carrier configuration information does not include the first indication information, or it is determined that the first carrier configuration information includes the system broadcast information, it is determined that the first carrier includes a common channel.
With reference to the twelfth aspect or the first possible implementation manner of the twelfth aspect, in a second possible implementation manner of the twelfth aspect, the determining, according to the first carrier configuration information, whether a common channel in an extended format is used in the first carrier includes:
if the first carrier configuration information is determined to include the second indication information, determining a common channel using an extended format in the first carrier; alternatively, the first and second electrodes may be,
and if the first carrier configuration information is determined to include the second indication information, determining that a common channel in a non-extended format is used in the first carrier.
In the technical solution of the embodiment of the present invention, for any discontinuous secondary carrier, the terminal may determine, according to the obtained maximum duration of continuous channel occupancy of the discontinuous secondary carrier, the channel sensing duration, and the initial reference time point of channel occupancy of the discontinuous secondary carrier and/or the initial reference time point of channel sensing, a special subframe in the discontinuous secondary carrier that includes all or part of symbols of gap symbols occupied by the channel sensing duration, and for any special subframe, use other symbols in the special subframe except the gap symbols as symbols that can be occupied by the PDCCH and/or PDSCH, and correspondingly receive or decode the PDCCH and/or PDSCH in the special subframe according to the symbols that can be occupied by the PDCCH and/or PDSCH, thereby solving the problem of low resource utilization rate caused by the fact that the gap symbols caused by CCA cannot be excluded from the whole subframe at present, the channel utilization rate under the condition of discontinuous channel occupation is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the network-side device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of the network-side device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of the terminal according to the third embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a position structure of the gap symbol and the special subframe according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of the terminal according to the fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of the network-side device according to the fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of the network-side device according to a sixth embodiment of the present invention;
fig. 8 is a schematic structural diagram of the terminal according to the seventh embodiment of the present invention;
fig. 9 is a schematic structural diagram of the terminal according to the eighth embodiment of the present invention;
fig. 10 is a schematic flowchart of a subframe processing method according to a ninth embodiment of the present invention;
fig. 11 is a flowchart illustrating a subframe processing method according to an eleventh embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the first embodiment of the present invention provides a network side device, which may be a base station or other devices, and this is not limited in this embodiment of the present invention. Specifically, as shown in fig. 1, which is a schematic structural diagram of the network-side device in the first embodiment of the present invention, the network-side device may include an information determining module 11 and an information sending module 12, where:
the information determining module 11 may be configured to determine first carrier configuration information of a first auxiliary carrier of a terminal, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes a starting reference time point of channel occupancy of the first auxiliary carrier and/or a starting reference time point of channel sensing of the first auxiliary carrier;
specifically, in the embodiment of the present invention, the first secondary carrier may generally refer to any discontinuous secondary carrier of at least one discontinuous secondary carrier configured for the terminal by a network side device such as a base station. Moreover, the first secondary carrier may be an unlicensed spectrum carrier, an asymmetric carrier, or a single downlink carrier, which is not described in detail in this embodiment of the present invention.
Further, when the network side device such as the base station transmits the discontinuous secondary carrier, the maximum continuous duration of the occupied channel may be generally not greater than a set first time threshold (for example, 13ms), and therefore, the determined maximum continuous duration of the channel of the first secondary carrier may also be any value not greater than the set first time threshold. In addition, in order to cooperate with a radio frame structure of the LTE system, the maximum duration of continuous occupation of the channel of the first auxiliary carrier may be a non-zero integral multiple of the duration (1ms) occupied by one subframe, such as the duration (10ms) occupied by one radio frame; or may be a symbol in a subframe, that is, a non-zero integer multiple of an occupied duration of an OFDM (Orthogonal Frequency Division Multiplexing) symbol, and the like, which are not limited in any way in the embodiment of the present invention.
Further, it should be noted that, when the network side device such as the base station transmits the discontinuous secondary carrier, a channel sensing time length required for performing channel sensing each time may be generally not less than a set second threshold (for example, 20s), and therefore, in the solution according to the embodiment of the present invention, the determined channel sensing time length of the first secondary carrier may also be generally not less than the set second time length threshold (for example, 20 s). It should be noted that, of course, the channel sensing duration of the first secondary carrier is usually not greater than a set third duration threshold, such as a duration occupied by one subframe, which is not limited in any way in the embodiments of the present invention.
Further, it should be noted that, in the embodiment of the present invention, the determined channel occupancy start reference time point of the first secondary carrier may generally refer to a channel occupancy start point when the first secondary carrier occupies a channel any time, and the determined channel sensing start reference time point of the first secondary carrier may generally refer to a channel sensing start time point when the first secondary carrier senses a channel any time after the first secondary carrier starts occupying the channel, which is not limited in this embodiment of the present invention.
It should be noted that, because the time when the terminal starts to receive the first secondary carrier is not fixed, the terminal may start to receive the first secondary carrier at the time when the first secondary carrier starts to occupy the channel, or may start to receive the first secondary carrier after the nth time (where N is any natural number) of the first secondary carrier occupies the channel, so that preferably, the channel occupancy start reference time point in the first carrier configuration information may be a channel occupancy start time point corresponding to the time when the terminal starts to receive the first secondary carrier or a channel occupancy start time point corresponding to a certain time after the time, and the channel sensing start reference time point in the first carrier configuration information may be a channel sensing start time point corresponding to the time when the terminal starts to receive the first secondary carrier or a channel sensing start time point corresponding to a certain time after the time, the embodiments of the present invention are not described in detail herein.
It should be further noted that, in the embodiment of the present invention, one or more channel occupancy start reference time points included in the first carrier configuration information may be included, and one or more channel sensing start reference time points may be included, which is not limited in this embodiment of the present invention.
The information sending module 12 may be configured to send the first carrier configuration information determined by the information determining module 11 to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information: determining a special subframe in the first secondary carrier, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration; and using other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
Specifically, the information sending module 12 may be specifically configured to send the first carrier configuration information determined by the information determining module 11 to the terminal through any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling, etc.
Further, it should be noted that the information sending module 12 may be specifically configured to send any two pieces of information included in the first carrier configuration information to the terminal by using the same or different messages. For example, the maximum duration of continuous channel occupancy or the duration of channel sensing of the first secondary carrier may be sent to the terminal by using an RRC message, and the initial reference time point of channel occupancy or the initial reference time point of channel sensing of the first secondary carrier may be sent to the terminal by using an MAC layer PDU message or a physical layer signaling.
It should be noted that the information sending module 12 may send any two pieces of information included in the first carrier configuration information to the terminal at the same time point or different time points. For example, the channel occupation start time point and/or the channel sensing start time point in the first carrier configuration information may be sent to the terminal at any time point after the first secondary carrier starts occupying the channel; and when the first auxiliary carrier is configured for the terminal, the maximum duration of continuous channel occupation and the channel sensing duration of the first auxiliary carrier in the first carrier configuration information can be sent to the terminal, and the like.
Further, the network side device may further include a symbol specifying module 13:
the symbol assigning module 13 may be configured to, before sending the determined first carrier configuration information to the terminal, assign a PDSCH starting symbol position for the first secondary carrier if the first secondary carrier is determined to be a cross-scheduling carrier; specifically, for any carrier, when the PDSCH of the carrier is scheduled by the PDCCH of another carrier, it is called cross-carrier scheduling, and accordingly, the carrier may be called a cross-scheduled carrier. For example, for the primary carrier F1 and the secondary carrier F2, if the PDSCH of the secondary carrier F2 configures PDCCH scheduling that needs to pass through the primary carrier F1, the secondary carrier F2 is a corresponding cross-scheduling carrier, at this time, the terminal does not need to read the PDCCH on the secondary carrier F2, and the network side device may directly configure the PDSCH starting symbol position of each subframe in the secondary carrier F2, so that the terminal may directly read the corresponding PDSCH according to the PDSCH starting symbol position and the PDCCH scheduling information of the primary carrier F1; that is, the PDSCH starting symbol position may be used to specify a position where a PDSCH symbol in each subframe in the first secondary carrier as a cross-scheduled carrier starts, and if the PDSCH starting symbol position is 0, it may indicate that all symbols in any subframe in the first secondary carrier as a cross-scheduled carrier may be used for PDSCH transmission.
Correspondingly, the information sending module 12 may be specifically configured to, when it is determined that the first secondary carrier is a cross-scheduling carrier, carry symbol position indication information used for indicating a PDSCH starting symbol position in the first carrier configuration information and send the symbol position indication information to the terminal, so that after the terminal determines a special subframe in the first secondary carrier according to the first carrier configuration information, according to a PDSCH starting symbol position indicated in the symbol position indication information, each non-gap symbol after the PDSCH starting symbol position in the special subframe is used as a symbol that can be occupied by the PDSCH.
Further, the network side device may further include a channel monitoring module 14:
the channel monitoring module 14 may be configured to monitor whether a channel corresponding to a first auxiliary carrier is occupied by other network-side devices in a time period corresponding to the channel sensing duration after determining first carrier configuration information of the first auxiliary carrier; specifically, whether the channel corresponding to the first auxiliary carrier is occupied by other network side devices may be determined by monitoring whether the signal energy in the time period corresponding to the channel sensing duration is greater than a set energy threshold, and if it is monitored that the signal energy in the time period corresponding to the channel sensing duration is greater than the set energy threshold, it may be determined that the channel corresponding to the first auxiliary carrier is occupied by other network side devices.
Correspondingly, the information sending module 12 may be further configured to send a carrier release message to the terminal when the monitoring result of the channel monitoring module 14 is yes (that is, when the channel corresponding to the first auxiliary carrier is occupied by other network-side devices in a time period corresponding to the time period for which the channel monitoring module 14 monitors the channel sensing time length), so that the terminal stops the data receiving or decoding operation performed on the first auxiliary carrier according to the carrier release message.
Further, in the embodiment of the present invention, the information determining module 11 may be further configured to determine second carrier configuration information of the first secondary carrier, where the second carrier configuration information may include any one or more of the following information:
system broadcast Information of the first secondary carrier, wherein the system broadcast Information can indicate that a Common Channel is contained in the first secondary carrier, and the Common Channel includes any one or more of PBCH, PSS, SSS, or Reference signals (e.g., CRS (Common Reference Signal), CSI-RS (Channel State Information Reference Signal), etc.);
first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel;
second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format; the common channel in the extended format means that the symbol or frequency position of the common channel is different from the symbol or frequency position of the common channel in the non-extended format in the prior art. Specifically, the common channel of the extended format may occupy less radio resources, and may make more symbol positions available for the first secondary carrier to transmit data. Specifically, for example, the related art PSS/SSS in the non-extended format may occupy the last two symbols of 0, 10 slots, while the PSS/SSS in the extended format may occupy only the first symbol of 0 slots. Thus, two slots of 0 and 10 may have 3 more symbols for transmitting data.
Correspondingly, the information sending module 12 may be further configured to send the second carrier configuration information determined by the information determining module 11 to the terminal, so that the terminal performs the following operations according to the received second carrier configuration information:
judging whether the first auxiliary carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
In the technical solution of the first embodiment of the present invention, for any discontinuous secondary carrier configured for a terminal, a network side device may determine carrier configuration information, such as a maximum duration of continuous channel occupancy, a channel sensing duration, and a starting reference time point of channel occupancy of the discontinuous secondary carrier and/or a starting reference time point of channel sensing, of the discontinuous secondary carrier, and send the determined carrier configuration information to the terminal, so that the terminal determines a special subframe in the discontinuous secondary carrier according to the received carrier configuration information, and uses other symbols except gap symbols in the special subframe as symbols that a PDCCH and/or a PDSCH can occupy, and correspondingly receives or decodes the PDCCH and/or the PDSCH in the special subframe according to the determined symbols that the PDCCH and/or the PDSCH can occupy, therefore, the problem that the resource utilization rate is low due to the fact that the terminal cannot exclude the gap symbol caused by the CCA from the whole subframe at present is solved, and the channel utilization rate under the condition that the channel is not occupied continuously is improved.
In addition, for any carrier configured for the terminal, the network side equipment can send the indication information of whether the carrier contains the common channel or not to the terminal, so that when the terminal is receiving or decoding the PDCCH and/or PDSCH in the sub-frame of the carrier, the symbol occupied by the public channel can be flexibly selected to be excluded or not excluded according to the received indication information whether the public channel is included or not, thereby solving the problems that for the secondary carrier without configuring the corresponding common channel, since the terminal still performs the problem of throughput increase caused by the exclusion of symbols occupied by the common channel according to the specific position occupied by the common channel, on the basis of improving the flexibility of excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of receiving or decoding the PDCCH and/or the PDSCH by the terminal are achieved.
Example two:
the second embodiment of the present invention provides a network side device, where the network side device may be a base station or other devices, and this is not limited in this embodiment of the present invention. Specifically, as shown in fig. 2, which is a schematic structural diagram of the network-side device in the second embodiment of the present invention, the network-side device may include an information determining module 21 and an information sending module 22, where:
the information determining module 21 may be configured to determine first carrier configuration information of a first carrier of a terminal, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of the first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier; second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
the information sending module 22 may be configured to send the first carrier configuration information determined by the information determining module 21 to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
Specifically, the information determining module 21 may determine the first carrier configuration information of the first carrier when the network side device configures the corresponding first carrier for the terminal, or may determine the first carrier configuration information of the first carrier after the network side device configures the corresponding first carrier for the terminal, which is not limited in this embodiment of the present invention. Further, the first carrier may be any discontinuous carrier or any continuous carrier configured by the network side device for the terminal, which is not limited in this embodiment of the present invention.
That is to say, in the second technical solution of the embodiment of the present invention, for any carrier configured for a terminal, a network side device may send indication information indicating whether the carrier includes a common channel to the terminal, so that when the terminal is receiving or decoding the PDCCH and/or PDSCH in the sub-frame of the carrier, the symbol occupied by the public channel can be flexibly selected to be excluded or not excluded according to the received indication information whether the public channel is included or not, thereby solving the problems that for the secondary carrier without configuring the corresponding common channel, since the terminal still performs the problem of throughput increase caused by the exclusion of symbols occupied by the common channel according to the specific position occupied by the common channel, on the basis of improving the flexibility of excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of receiving or decoding the PDCCH and/or the PDSCH by the terminal are achieved.
Example three:
the third embodiment of the present invention provides a terminal, where the terminal may be a device such as a mobile phone capable of performing communication interaction with a network side device, and the embodiment of the present invention is not limited in this respect. Specifically, as shown in fig. 3, which is a schematic structural diagram of the terminal according to the third embodiment of the present invention, the terminal may specifically include an information obtaining module 31, a subframe determining module 32, and a subframe processing module 33:
the information obtaining module 31 may be configured to obtain first carrier configuration information of a first auxiliary carrier, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes an initial reference time point of channel occupancy of the first auxiliary carrier and/or an initial reference time point of channel sensing;
the subframe determining module 32 may be configured to determine a special subframe in the first auxiliary carrier according to the first carrier configuration information acquired by the information acquiring module 31, where the special subframe includes all or part of symbols of gap symbols, and the gap symbols are symbols that are occupied by all or part of the channel sensing duration;
the subframe processing module 33 may be configured to use the other symbols except the gap symbols in the special subframe determined by the subframe determining module 32 as the symbols that can be occupied by the PDCCH and/or PDSCH, and accordingly receive or decode the PDCCH and/or PDSCH in the special subframe according to the determined symbols that can be occupied by the PDCCH and/or PDSCH.
Specifically, the first carrier configuration information may be configured and sent to the terminal by a network side device such as a base station. It should be noted that, of course, the first carrier configuration information may also be predefined according to a set rule and stored in the terminal, which is not limited in this embodiment of the present invention.
Further, when the first carrier configuration information is sent to the terminal by the network side device, the first carrier configuration information may be sent to the terminal by the network side device by using any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling, etc. Any two pieces of information included in the first carrier configuration information may be sent to the terminal by the network side device using the same or different messages. In addition, any two pieces of information included in the first carrier configuration information may be transmitted to the terminal by the network side device at the same time point or different time points. For example, the channel occupancy start reference time point and/or the channel sensing start reference time point in the first carrier configuration information may be sent to the terminal by the network side device at any time point after the first secondary carrier starts to occupy the channel; the maximum duration of continuous channel occupancy of the first auxiliary carrier in the first carrier configuration information and the channel sensing duration may be sent to the terminal by the network side device when the first auxiliary carrier is configured for the terminal.
Further, the subframe determining module 32 may be specifically configured to determine, according to the maximum duration of continuous channel occupancy, the channel sensing duration, and the starting reference time point of channel occupancy and/or the starting reference time point of channel sensing included in the first carrier configuration information, the ending time point of channel occupancy of the first secondary carrier or the starting time point of channel sensing, use the determined ending time point of channel occupancy or M symbols after the determined starting time point of channel sensing as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe; the M symbols are determined by the channel sensing duration, and M is a positive integer greater than or equal to 1.
Further, in the embodiment of the present invention, the channel occupancy of the first secondary carrier may be limited to end at a subframe boundary or not limited to end at a subframe boundary, and when the channel occupancy of the first secondary carrier ends at a subframe boundary, corresponding subframe boundary information needs to be obtained, such as subframe boundary information of a primary carrier of the terminal or subframe boundary information of a second secondary carrier (where the second secondary carrier is a continuous carrier); accordingly, when the channel occupancy of the first secondary carrier ends at a subframe boundary, the terminal (specifically, the subframe determination module 32) further needs to perform subframe boundary detection to determine subframe boundary information, such as subframe boundary information of a primary carrier of the terminal or subframe boundary information of a second secondary carrier.
Correspondingly, at this time, the subframe determining module 32 may be specifically configured to determine, according to the maximum duration of continuous channel occupancy, the channel sensing duration, the starting reference time point of channel occupancy and/or the starting reference time point of channel sensing, and the subframe boundary information included in the first carrier configuration information, the ending time point of channel occupancy of the first secondary carrier or the starting time point of channel sensing, use M symbols after the determined ending time point of channel occupancy or the determined starting time point of channel sensing as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe.
Further, taking as an example that the channel occupancy of the first secondary carrier is not limited to end at a subframe boundary, and the first carrier configuration information includes a channel occupancy start reference time point of the first secondary carrier, and the channel occupancy start reference time point refers to a channel occupancy start time point when the first secondary carrier occupies a channel for the first time, the subframe determining module 32 may determine a channel occupancy end time point (or a channel sensing start time point when the channel is sensed for the nth time) tN when the first secondary carrier occupies a channel for the nth time according to the following formula:
tN ═ (T10+ T1) + (N-1) (CCA + T1); wherein, the t10 refers to the channel occupation starting reference time point; the T1 refers to a maximum duration of continuous occupation of the channel of the first secondary carrier; the CCA refers to a channel sensing duration of the first auxiliary carrier; and N is a positive integer greater than or equal to 1.
Further, taking as an example that the channel occupancy of the first secondary carrier does not end at a subframe boundary, and the first carrier configuration information includes a channel sensing start reference time point of the first secondary carrier, and the channel sensing start reference time point refers to a channel sensing start time point at the first time of channel sensing after the first secondary carrier starts to occupy a channel, the subframe determining module 32 may determine a channel occupancy end time point at the nth time of channel occupancy (or a channel sensing start time point at the nth time of channel sensing) tN of the first secondary carrier according to the following formula:
tN-T20 + (N-1) (CCA + T1); wherein, the t20 refers to the channel sensing starting reference time point; the T1 refers to a maximum duration of continuous occupation of the channel of the first secondary carrier; the CCA refers to a channel sensing duration of the first secondary carrier.
Correspondingly, after determining the channel occupation end time point when the first auxiliary carrier occupies the channel for the nth time or the channel sensing start time point when the first auxiliary carrier listens to the channel for the nth time, the corresponding gap symbol and the corresponding special subframe can be determined according to the channel sensing duration of the first auxiliary carrier.
It should be noted that, when the channel occupancy of the first secondary carrier does not limit to end at the subframe boundary, the determined channel occupancy end time point when the first secondary carrier occupies the channel for the nth time or the channel sensing start time point when the first secondary carrier senses the channel for the nth time (i.e., the start time point of the CCA) is not limited to the start position of the corresponding subframe, so that the position of the gap symbol is also dynamically changed and may appear at any position in the subframe.
Further, taking the case that the channel occupancy restriction of the first secondary carrier ends at the subframe boundary, and the first carrier configuration information includes the channel occupancy start reference time point of the first secondary carrier, and the channel occupancy start reference time point refers to the channel occupancy start time point when the first secondary carrier occupies the channel for the first time as an example, the subframe determining module 32 may determine the channel occupancy end time point (or the channel sensing start time point when the nth channel sensing is performed) when the first secondary carrier occupies the channel for the nth time according to the following manner:
when the value of N is 1, judging whether a time point corresponding to the sum of the maximum continuous occupation time of the channel of the first auxiliary carrier and the initial reference time point of the channel occupation of the first auxiliary carrier is at the boundary of the subframe or not according to the subframe boundary information included in the first carrier configuration information, if so, taking the time point corresponding to the sum of the maximum continuous channel occupation duration of the first auxiliary carrier and the initial reference time point of the channel occupation of the first auxiliary carrier as the ending time point when the first auxiliary carrier occupies the channel for the 1 st time, if not, taking the starting time point of the subframe where the time point corresponding to the sum of the maximum continuous channel occupation duration of the first auxiliary carrier and the starting reference time point occupied by the channel of the first auxiliary carrier is as the ending time point when the first auxiliary carrier occupies the channel for the 1 st time; and when the value of N is a positive integer greater than 1, taking the determined end time point when the first auxiliary carrier occupies the channel for the N-1 th time as an N-1 th end time point, taking the sum of the channel sensing time length and the maximum continuous channel occupation time length of the first auxiliary carrier as a first period, judging whether the time point corresponding to the sum of the first period and the N-1 th end time point is at a subframe boundary according to subframe boundary information included in the first carrier configuration information, if so, taking the time point corresponding to the sum of the first period and the N-1 th end time point as an end time point when the first auxiliary carrier occupies the channel for the N th time, and if not, taking the subframe starting time point of a subframe where the time point corresponding to the sum of the first period and the N-1 th end time point is located as the subframe starting time point when the first auxiliary carrier occupies the channel for the N th time The end time point of (c).
Further, taking the case that the channel occupancy restriction of the first secondary carrier ends at the subframe boundary, and the first carrier configuration information includes the channel sensing start reference time point of the first secondary carrier, and the channel sensing start reference time point refers to the channel sensing start time point when the first secondary carrier first senses the channel after starting to occupy the channel, the subframe determining module 32 may determine the channel occupancy end time point when the first secondary carrier N occupies the channel (or the channel sensing start time point when the channel is sensed N):
when the value of the N is 1, directly taking the channel sensing initial reference time point of the first auxiliary carrier as the ending time point when the first auxiliary carrier occupies the channel for the 1 st time; when the value of N is a positive integer greater than 1, taking the determined ending time point when the first auxiliary carrier occupies the channel for the N-1 th time as an N-1 th ending time point, taking the sum of the channel sensing time length and the maximum continuous channel occupation time length of the first auxiliary carrier as a first period, judging whether the time point corresponding to the sum of the first period and the N-1 th ending time point is at a subframe boundary according to subframe boundary information included in the first carrier configuration information, if so, taking the time point corresponding to the sum of the first period and the N-1 th ending time point as the ending time point when the first auxiliary carrier occupies the channel for the N th time, and if not, taking the subframe starting time point of the subframe where the time point corresponding to the sum of the first period and the N-1 th ending time point is located as the ending time point when the first auxiliary carrier occupies the channel for the N th time The time point.
Correspondingly, after determining the channel occupation end time point when the first auxiliary carrier occupies the channel for the nth time or the channel sensing start time point when the first auxiliary carrier listens to the channel for the nth time, the corresponding gap symbol and the corresponding special subframe can be determined according to the channel sensing duration of the first auxiliary carrier.
It should be noted that, when the channel occupancy limitation of the first auxiliary carrier is ended at the subframe boundary, the determined channel occupancy ending time point when the first auxiliary carrier occupies the channel for the nth time or the channel sensing starting time point when the first auxiliary carrier senses the channel for the nth time (i.e., the starting time point of the CCA) is limited to the starting position of the corresponding subframe, so that the starting position of the gap symbol is usually also the starting position of the corresponding subframe, which is not described in detail in the embodiments of the present invention.
It should be noted that, in the embodiment of the present invention, when the 1 st (i.e. the first) channel occupation start time point of the first auxiliary carrier is located at a certain symbol position of the 0 th subframe of the set radio frame of the main carrier of the terminal or other continuous auxiliary carriers, the first auxiliary carrier may actually use the corresponding channel from the subframe start time point of the 1 st subframe of the correspondingly set radio frame of the main carrier of the terminal or other continuous auxiliary carriers, so as to achieve the effect of aligning the corresponding subframe boundary, which is not described in detail in this embodiment of the present invention.
Specifically, the following briefly describes, according to a specific example, a procedure for determining a channel occupation end time point when the first secondary carrier occupies the channel for the nth time (or a channel sensing start time point when the channel is sensed for the nth time), and corresponding gap symbols and special subframes in the embodiment of the present invention:
as shown in fig. 4, assume that: the terminal is configured with at least two working carriers, such as a first carrier and a second carrier, where the first carrier is a discontinuous secondary carrier deployed on an unlicensed spectrum, and a maximum duration of continuous channel occupancy of the first carrier is 10ms (i.e., a duration occupied by one radio frame), a channel sensing duration is 20s (i.e., less than one symbol), and a starting reference time point of channel occupancy of the first carrier refers to a starting time point of channel occupancy when the first carrier occupies a channel for the first time, and the first carrier occupies a channel from a middle position of a first subframe (subframe No. 0) of a radio frame 1 shown in fig. 4 (i.e., the starting time point of channel occupancy is a time point corresponding to a middle position of the first subframe of the radio frame 1), then:
if the channel occupancy limitation of the first carrier is ended at the subframe boundary, in order to end the channel occupancy at the subframe boundary, the first carrier needs to end at the subframe ending time point of the subframe 9 of the radio frame 1 (or the subframe starting time point of the subframe 0 of the radio frame 2) when occupying the channel for the first time, that is, at this time, the first channel occupancy ending time point of the first carrier is the subframe ending time point of the subframe 9 of the radio frame 1 (or the subframe starting time point of the subframe 0 of the radio frame 2) shown in fig. 4. Correspondingly, a symbol occupied by the channel sensing duration after the subframe ending time point of the subframe No. 9 of the radio frame 1 (or the subframe starting time point of the subframe No. 0 of the radio frame 2) is a gap symbol, and a subframe having the gap symbol is a special subframe. Specifically, in fig. 4, since the channel sensing duration may occupy only less than one symbol, the determined gap symbol is the first symbol of subframe 0 of radio frame 2, and the determined subframe is subframe 0 of radio frame 2. Similarly, according to the foregoing manner, it may also be determined that the first carrier needs to end at the subframe ending time point of the subframe 9 of the subframe 2 (or the subframe starting time point of the subframe 0 of the subframe 3) when occupying the channel for the second time, that is, the second channel occupation ending time point of the first carrier is the subframe ending time point of the subframe 9 of the subframe 2 (or the subframe starting time point of the subframe 0 of the subframe 3) shown in fig. 4, and it may also be determined that the first symbol of the subframe 0 of the subframe 3 is a gap symbol, and the subframe 0 of the subframe 3 is a special subframe, and the like, which is not described again in this embodiment of the present invention.
That is to say, in the carrier structure diagram shown in fig. 4, the determined channel occupation end time point when the first carrier occupies the channel for the nth time or the channel sensing start time point when the first carrier senses the channel for the nth time (i.e., the start time point of the CCA) is limited to the start position of the corresponding subframe (or the end position of the previous subframe adjacent to the corresponding subframe), so that the start position of the gap symbol is usually located at the start position of the corresponding subframe (or the end position of the previous subframe adjacent to the corresponding subframe).
Further, it should be noted that, as shown in fig. 4, when the channel occupancy restriction of the first carrier ends at a subframe boundary, the actual continuous duration of channel occupancy of the first carrier each time the first carrier occupies the channel may be less than 10ms, for example, in order to align with a subframe boundary of a second carrier, the first carrier may generally start to actually use the channel from subframe number 1 of radio frame 1, and in order to end the channel occupancy at the subframe boundary, the first carrier needs to end at subframe number 9 of radio frame 1 when occupying the channel for the first time, and start CCA at the subframe end time point of subframe number 9 of radio frame 1. In this case, although the maximum duration of continuous occupation of the channel of the first carrier may be 10ms, the actual occupation is only 9 ms; it should be noted that, if the initial time point of the first time channel occupancy of the first carrier is the initial time point of the subframe No. 0 of the radio frame 1, the actual continuous occupancy duration of the channel of the first carrier may still be 10ms, which is not described in detail in this embodiment of the present invention.
Further, after determining the gap symbol and the corresponding special subframe, the subframe processing module 33 may be utilized to process the corresponding special subframe.
Specifically, the subframe processing module 33 is specifically configured to, if it is determined that the first carrier configuration information carries symbol position indication information for indicating a PDSCH starting symbol position, use, as symbols that can be occupied by the PDSCH, each non-gap symbol after the PDSCH starting symbol position in the special subframe according to the PDSCH starting symbol position indicated in the symbol position indication information; the symbol position indication information is sent to the terminal by the network side equipment when the first auxiliary carrier is determined to be a cross-scheduling carrier; alternatively, the first and second electrodes may be,
the method is specifically configured to read a PFICH from the 1 st symbol of the special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH; alternatively, the first and second electrodes may be,
the method is specifically configured to read a PFICH from the M +1 th symbol of the special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH.
It should be noted that the subframe processing module 33 is specifically configured to, if it is determined that the first carrier configuration information does not carry symbol position indication information for indicating a starting symbol position of a PDSCH, read a PFICH from a 1 st symbol of the special subframe or read a PFICH from an M +1 th symbol of the special subframe for any special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and take other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as the symbol that can be occupied by the PDSCH.
Further, it should be noted that, when determining the symbols that can be occupied by the PDCCH and the symbols that can be occupied by the PDSCH by using the above manner of reading the PFICH, the subframe processing module 33 may be specifically configured to, for any special subframe, read the PFICH from the 1 st symbol of the special subframe when determining that the gap symbol in the special subframe is not located at the start position of the special subframe, and read the PFICH from the M +1 st symbol of the special subframe when determining that the gap symbol in the special subframe is located at the start position of the special subframe; or, the apparatus may be configured to first read the PFICH from the 1 st symbol of the special subframe, and when the PFICH cannot be read, read the PFICH from the M +1 th symbol of the special subframe; or, the method and the apparatus may be configured to first read the PFICH from the M +1 th symbol of the special subframe, and when the PFICH cannot be read, read the PFICH from the 1 st symbol of the special subframe, and the like, which is not limited in this embodiment of the present invention.
Further, it should be noted that, in the embodiment of the present invention, for any special subframe, when it is determined that all symbols in the special subframe are gap symbols, that is, the channel sensing duration may occupy the duration occupied by the whole subframe, the subframe processing module 33 may be further configured to stop, for the special subframe, performing corresponding reception or decoding on the PDCCH and/or the PDSCH in the special subframe.
Further, the terminal may further include an information monitoring module 34:
the information monitoring module 34 may be configured to perform energy detection on any gap symbol; and/or, monitoring whether a carrier release message for the first secondary carrier is received from a network side device;
the subframe processing module 33 may be further configured to, for any gap symbol, stop receiving or decoding a special subframe containing all or part of the gap symbol when it is determined that the energy of the gap symbol detected by the information monitoring module 34 is higher than a set energy threshold; this is because, for any gap symbol, at the position of the gap symbol, the first auxiliary carrier of the network side device does not send any data, and if the corresponding energy is detected at the position of the gap symbol, it indicates that, during the CCA period corresponding to the gap symbol, the channel occupied by the first auxiliary carrier is occupied by other network side devices, and therefore, it is not necessary to correspondingly receive or decode the PDCCH and/or PDSCH after the position of the gap symbol; alternatively, the first and second electrodes may be,
the information monitoring module 34 may further be configured to stop the data reception or decoding operation performed on the first secondary carrier when it is monitored that the carrier release message for the first secondary carrier is received from the network side device.
Further, in the embodiment of the present invention, the information obtaining module 31 may be further configured to receive second carrier configuration information for the first secondary carrier, where the second carrier configuration information is sent by a network side device, and the second carrier configuration information may include any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel; second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
the subframe processing module 33 may be further configured to determine whether the first secondary carrier includes a common channel according to the second carrier configuration information, and when the determination result is yes, exclude symbols occupied by the common channel from symbols that can be occupied by a PDCCH and/or a PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first secondary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
the second carrier configuration information is used for determining whether the first auxiliary carrier uses the common channel in the extended format, and when the determination result is yes, excluding the symbols occupied by the common channel in the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
That is to say, for any carrier, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal may flexibly select to exclude or not exclude the symbols occupied by the common channel according to whether the received indication information includes the common channel, thereby solving the problem that the throughput is increased for the secondary carrier not configured with the corresponding common channel, which is caused by the fact that the terminal still excludes the symbols occupied by the common channel according to the specific position occupied by the common channel, and achieving the effects of reducing the throughput loss and improving the efficiency of the terminal in receiving or decoding the PDCCH and/or PDSCH on the basis of improving the flexibility of the terminal in excluding the symbols occupied by the common channel.
Specifically, the subframe processing module 33 is specifically configured to determine that the first secondary carrier does not include a common channel if it is determined that the second carrier configuration information includes the first indication information or it is determined that the second carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
the method may specifically be configured to determine that the first secondary carrier includes a common channel if it is determined that the second carrier configuration information does not include the first indication information or it is determined that the second carrier configuration information includes the system broadcast information.
Similarly, the subframe processing module 33 may be further specifically configured to determine, if it is determined that the second carrier configuration information includes the second indication information, a common channel using an extended format in the first secondary carrier; alternatively, the first and second electrodes may be,
the method may further specifically be configured to determine that a common channel in a non-extended format is used in the first secondary carrier if it is determined that the second carrier configuration information does not include the second indication information.
That is to say, in the technical solution of the third embodiment of the present invention, for any discontinuous secondary carrier, the terminal may determine, according to the obtained maximum duration of continuous channel occupancy of the discontinuous secondary carrier, the channel sensing duration, and the initial reference time point of channel occupancy and/or the initial reference time point of channel occupancy of the discontinuous secondary carrier, a special subframe in the discontinuous secondary carrier, where all or part of symbols of a gap symbol occupied by the channel sensing duration are included, and, for any special subframe, take other symbols in the special subframe except the gap symbol as symbols that can be occupied by a PDCCH and/or a PDSCH, and correspondingly receive or decode the PDCCH and/or the PDSCH in the special subframe according to the symbols that can be occupied by the PDCCH and/or the PDSCH, thereby solving the problem that the resource utilization rate is low due to the fact that the gap symbol caused by the CCA cannot be excluded from the entire subframe at present, the channel utilization rate under the condition of discontinuous channel occupation is improved.
In addition, for any carrier, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal can flexibly select to exclude or not exclude the symbols occupied by the common channel according to whether the received indication information contains the common channel, so that the problem that the throughput is increased for the auxiliary carrier which is not configured with the corresponding common channel and is caused by the fact that the terminal still excludes the symbols occupied by the common channel according to the specific position occupied by the common channel is solved, and on the basis of improving the flexibility of the terminal in excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of the terminal in receiving or decoding the PDCCH and/or PDSCH are achieved.
Example four:
the fourth embodiment of the present invention provides a terminal, where the terminal may be a device such as a mobile phone that can perform communication interaction with a network side device, and this is not limited in this embodiment of the present invention. Specifically, as shown in fig. 5, which is a schematic structural diagram of the terminal according to the fourth embodiment of the present invention, the terminal may specifically include an information receiving module 51 and a subframe processing module 52:
the information receiving module 51 may be configured to receive first carrier configuration information for a first carrier sent by a network side device, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of a first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier; second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
the subframe processing module 52 may be configured to determine whether the first carrier includes a common channel according to the first carrier configuration information, and when the determination result is yes, when receiving or decoding a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH on a subframe in the first carrier, exclude symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
Specifically, the subframe processing module 52 is specifically configured to determine that the first carrier does not include a common channel if it is determined that the first carrier configuration information includes the first indication information or that the first carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
the method may specifically be configured to determine that the first carrier includes a common channel if it is determined that the first carrier configuration information does not include the first indication information or it is determined that the first carrier configuration information includes the system broadcast information.
Similarly, the subframe processing module 52 may be further specifically configured to determine, if it is determined that the first carrier configuration information includes the second indication information, a common channel in the first carrier using an extended format; alternatively, the first and second electrodes may be,
specifically, the method may further be configured to determine that a common channel in a non-extended format is used in the first carrier if it is determined that the first carrier configuration information does not include the second indication information.
That is to say, in the technical solution of the fourth embodiment of the present invention, for any carrier configured for the terminal, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal may flexibly select to exclude or not exclude the symbol occupied by the common channel according to whether the received indication information includes the common channel, so as to solve the problem that the throughput is increased for the secondary carrier not configured with the corresponding common channel, which is currently existing, because the terminal still performs exclusion of the symbol occupied by the common channel according to the specific position occupied by the common channel, and on the basis of improving the flexibility of the terminal excluding the symbol occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of the terminal in receiving or decoding the PDCCH and/or PDSCH are achieved.
Example five:
the fifth embodiment of the present invention provides a network side device, where the network side device is a network side entity device based on the same inventive concept as the network side device in the first embodiment of the present invention. Specifically, as shown in fig. 6, which is a schematic structural diagram of the network-side device according to the fifth embodiment of the present invention, the network-side device may include components such as a processor 61 and a transmitter 62, where:
the processor 61 may be configured to determine first carrier configuration information of a first auxiliary carrier of a terminal, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes a starting reference time point of channel occupancy of the first auxiliary carrier and/or a starting reference time point of channel sensing of the first auxiliary carrier;
the transmitter 62 is configured to transmit the first carrier configuration information determined by the processor 61 to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information: determining a special subframe in the first secondary carrier, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration; and using other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
Specifically, the transmitter 62 is specifically configured to transmit the first carrier configuration information determined by the processor 61 to the terminal through any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling, etc. The transmitter 62 may be specifically configured to transmit any two pieces of information included in the first carrier configuration information to the terminal by using the same or different messages. Note that, the transmitter 62 may transmit any two pieces of information included in the first carrier configuration information to the terminal at the same time point or different time points. For example, the transmitter 62 is specifically configured to transmit the channel occupation start time point and/or the channel sensing start time point in the first carrier configuration information to the terminal at any time point after the first secondary carrier starts to occupy the channel; and when the terminal is configured with the first secondary carrier, sending the maximum duration of continuous channel occupancy and the channel sensing duration of the first secondary carrier in the first carrier configuration information to the terminal.
Further, the processor 61 may be further configured to, before sending the determined first carrier configuration information to the terminal, assign a PDSCH starting symbol position to the first secondary carrier if the first secondary carrier is determined to be a cross-scheduled carrier.
Correspondingly, the transmitter 62 is specifically configured to, when it is determined that the first secondary carrier is a cross-scheduling carrier, carry symbol position indication information used for indicating a PDSCH starting symbol position in the first carrier configuration information and send the first carrier configuration information to the terminal, so that after the terminal determines a special subframe in the first secondary carrier according to the first carrier configuration information, according to the PDSCH starting symbol position indicated in the symbol position indication information, each non-gap symbol after the PDSCH starting symbol position in the special subframe is used as a symbol that can be occupied by the PDSCH.
Further, the network side device may further include a monitor 63:
the monitor 63 may be configured to monitor whether a channel corresponding to a first auxiliary carrier is occupied by other network side devices in a time period corresponding to the channel sensing duration after determining the first carrier configuration information of the first auxiliary carrier.
Correspondingly, the transmitter 62 may be further configured to send a carrier release message to the terminal when the monitoring result of the monitor 63 is yes (that is, when the channel corresponding to the first auxiliary carrier is occupied by other network side devices in the time period corresponding to the monitored channel sensing duration), so that the terminal stops the data receiving or decoding operation performed on the first auxiliary carrier according to the carrier release message.
Further, in the embodiment of the present invention, the processor 61 may be further configured to determine second carrier configuration information of the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel; second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format.
Accordingly, the transmitter 62 is further configured to transmit the second carrier configuration information determined by the processor 61 to the terminal, so that the terminal performs the following operations according to the received second carrier configuration information:
judging whether the first auxiliary carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
That is to say, in the technical solution of the fifth embodiment of the present invention, for any discontinuous secondary carrier configured for a terminal, a network side device may determine carrier configuration information, such as a maximum channel continuous occupancy duration, a channel sensing duration, and a channel occupancy start reference time point and/or a channel sensing start reference time point of the discontinuous secondary carrier, and send the determined carrier configuration information to the terminal, so that the terminal determines a special subframe in the discontinuous secondary carrier according to the received carrier configuration information, and uses other symbols except gap symbols in the special subframe as symbols that can be occupied by a PDCCH and/or a PDSCH, and correspondingly receives or decodes the PDCCH and/or the PDSCH in the special subframe according to the determined symbols that can be occupied by the PDCCH and/or the PDSCH, therefore, the problem that the resource utilization rate is low due to the fact that the terminal cannot exclude the gap symbol caused by the CCA from the whole subframe at present is solved, and the channel utilization rate under the condition that the channel is not occupied continuously is improved.
In addition, for any carrier configured for the terminal, the network side equipment can send the indication information of whether the carrier contains the common channel or not to the terminal, so that when the terminal is receiving or decoding the PDCCH and/or PDSCH in the sub-frame of the carrier, the symbol occupied by the public channel can be flexibly selected to be excluded or not excluded according to the received indication information whether the public channel is included or not, thereby solving the problems that for the secondary carrier without configuring the corresponding common channel, since the terminal still performs the problem of throughput increase caused by the exclusion of symbols occupied by the common channel according to the specific position occupied by the common channel, on the basis of improving the flexibility of excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of receiving or decoding the PDCCH and/or the PDSCH by the terminal are achieved.
Example six:
the sixth embodiment of the present invention provides a network side device, where the network side device is a network side entity device based on the same inventive concept as the network side device described in the second embodiment of the present invention. Specifically, as shown in fig. 7, which is a schematic structural diagram of the network-side device according to the sixth embodiment of the present invention, the network-side device may include a processor 71, a transmitter 72, and other components, where:
the processor 71 may be configured to determine first carrier configuration information of a first carrier of a terminal, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of the first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier; second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
the transmitter 72 is configured to transmit the first carrier configuration information determined by the processor 71 to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
That is to say, in the technical solution of the sixth embodiment of the present invention, for any carrier configured for a terminal, a network side device may send indication information indicating whether the carrier includes a common channel to the terminal, so that when the terminal is receiving or decoding the PDCCH and/or PDSCH in the sub-frame of the carrier, the symbol occupied by the public channel can be flexibly selected to be excluded or not excluded according to the received indication information whether the public channel is included or not, thereby solving the problems that for the secondary carrier without configuring the corresponding common channel, since the terminal still performs the problem of throughput increase caused by the exclusion of symbols occupied by the common channel according to the specific position occupied by the common channel, on the basis of improving the flexibility of excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of receiving or decoding the PDCCH and/or the PDSCH by the terminal are achieved.
Example seven:
the seventh embodiment of the present invention provides a terminal, which is a terminal entity device based on the same inventive concept as the terminal described in the third embodiment of the present invention. Specifically, as shown in fig. 8, which is a schematic structural diagram of the terminal according to the seventh embodiment of the present invention, the terminal may include a receiver 81, a processor 82, and other components, where:
the receiver 81 may be configured to obtain first carrier configuration information of a first auxiliary carrier, where the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information includes a maximum duration of continuous channel occupancy of the first auxiliary carrier and a channel sensing duration, and further includes an initial reference time point of channel occupancy of the first auxiliary carrier and/or an initial reference time point of channel sensing;
the processor 82 is configured to determine a special subframe in the first secondary carrier according to the first carrier configuration information obtained by the receiver 81, where the special subframe includes all or part of gap symbols, and the gap symbols are symbols that are occupied by all or part of the channel sensing duration; and taking the determined other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
Specifically, the first carrier configuration information may be configured and sent to the terminal by a network side device such as a base station. It should be noted that, of course, the first carrier configuration information may also be predefined according to a set rule and stored in the terminal, which is not limited in this embodiment of the present invention.
Further, when the first carrier configuration information is sent to the terminal by the network side device, the first carrier configuration information may be sent to the terminal by the network side device by using any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling, etc. Any two pieces of information included in the first carrier configuration information may be sent to the terminal by the network side device using the same or different messages. In addition, any two pieces of information included in the first carrier configuration information may be sent to the terminal by the network side device at the same time point or different time points, which is not limited in this embodiment of the present invention.
Further, the processor 82 is specifically configured to determine a channel occupation end time point or a channel sensing start time point of the first secondary carrier according to the maximum channel continuous occupation time length, the channel sensing time length, and the channel occupation start reference time point and/or the channel sensing start reference time point included in the first carrier configuration information, use the determined channel occupation end time point or M symbols after the determined channel sensing start time point as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe; the M symbols are determined by the channel sensing duration, and M is a positive integer greater than or equal to 1.
Further, the channel occupancy of the first secondary carrier may be limited to end at a subframe boundary or not limited to end at a subframe boundary, and when the channel occupancy of the first secondary carrier ends at a subframe boundary, corresponding subframe boundary information needs to be obtained, such as subframe boundary information of a primary carrier of the terminal or subframe boundary information of a second secondary carrier; accordingly, when the channel occupancy of the first secondary carrier ends at a subframe boundary, the terminal (specifically, the processor 82) further needs to perform subframe boundary detection to determine subframe boundary information, such as subframe boundary information of a primary carrier of the terminal or subframe boundary information of a second secondary carrier.
Accordingly, at this time, the processor 82 is specifically configured to determine a channel occupation end time point or a channel sensing start time point of the first secondary carrier according to the maximum channel continuous occupation time length, the channel sensing time length, the channel occupation start reference time point and/or the channel sensing start reference time point included in the first carrier configuration information, and subframe boundary information, and to use M symbols after the determined channel occupation end time point or the determined channel sensing start time point as the gap symbols, and use a subframe including all or part of the M symbols as the special subframe.
Further, after the gap symbol and the corresponding special subframe are determined, the corresponding special subframe may be processed. Specifically, the processor 82 is specifically configured to, if it is determined that the first carrier configuration information carries symbol position indication information for indicating a PDSCH starting symbol position, use, as symbols that can be occupied by the PDSCH, each non-gap symbol after the PDSCH starting symbol position in the special subframe according to the PDSCH starting symbol position indicated in the symbol position indication information; alternatively, the first and second electrodes may be,
the method is specifically configured to read a PFICH from the 1 st symbol of the special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH; alternatively, the first and second electrodes may be,
the method is specifically configured to read a PFICH from the M +1 th symbol of the special subframe, determine a symbol that can be occupied by a PDCCH according to the PFICH, and use other symbols in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH as symbols that can be occupied by the PDSCH.
It should be noted that the processor 82 is specifically configured to, if it is determined that the first carrier configuration information does not carry symbol position indication information for indicating a starting symbol position of the PDSCH, read, for any special subframe, a PFICH from a 1 st symbol of the special subframe or a PFICH from an M +1 th symbol of the special subframe, determine a symbol that can be occupied by the PDCCH according to the PFICH, and use, as the symbol that can be occupied by the PDSCH, another symbol in the special subframe except the gap symbol and the symbol that can be occupied by the PDCCH.
Further, it should be noted that, in the embodiment of the present invention, for any special subframe, when it is determined that all symbols in the special subframe are gap symbols, that is, the channel sensing duration may occupy a duration occupied by the whole subframe, the processor 82 may be further configured to stop, for the special subframe, corresponding receiving or decoding of the PDCCH and/or the PDSCH in the special subframe.
Further, the terminal may further include a monitor 83:
the monitor 83 can be used for performing energy detection on any gap symbol; and/or, monitoring whether a carrier release message for the first secondary carrier is received from a network side device;
the processor 82 is further configured to, for any gap symbol, stop receiving or decoding a special subframe containing all or part of the gap symbol when it is determined that the energy of the gap symbol detected by the monitor 83 is above a set energy threshold; or, the monitor 83 is further configured to stop the data reception or decoding operation performed on the first secondary carrier when the monitor 83 monitors that a carrier release message for the first secondary carrier is received from a network side device.
Further, the receiver 81 may be further configured to receive second carrier configuration information, which is sent by a network side device and is for the first secondary carrier, where the second carrier configuration information includes any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel; second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
the processor 82 may be further configured to determine, according to the second carrier configuration information, whether the first secondary carrier includes a common channel, and if the determination result is yes, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, exclude symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
the second carrier configuration information is used for determining whether the first auxiliary carrier uses the common channel in the extended format, and when the determination result is yes, excluding the symbols occupied by the common channel in the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
Specifically, the processor 82 is specifically configured to determine that the first secondary carrier does not include a common channel if it is determined that the second carrier configuration information includes the first indication information or it is determined that the second carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
the method may specifically be configured to determine that the first secondary carrier includes a common channel if it is determined that the second carrier configuration information does not include the first indication information or it is determined that the second carrier configuration information includes the system broadcast information.
Similarly, the processor 82 is specifically configured to determine, if it is determined that the second carrier configuration information includes the second indication information, a common channel in the first secondary carrier using an extended format; alternatively, the first and second electrodes may be,
the method may specifically be configured to determine that a common channel in a non-extended format is used in the first secondary carrier if it is determined that the second carrier configuration information does not include the second indication information.
That is to say, in the seventh technical solution of the embodiment of the present invention, for any discontinuous secondary carrier, the terminal may determine, according to the obtained maximum duration of continuous channel occupancy of the discontinuous secondary carrier, the channel sensing duration, and the initial reference time point of channel occupancy and/or the initial reference time point of channel occupancy of the discontinuous secondary carrier, a special subframe in the discontinuous secondary carrier, where all or part of symbols of a gap symbol occupied by the channel sensing duration are included, and, for any special subframe, take other symbols in the special subframe except the gap symbol as symbols that can be occupied by a PDCCH and/or a PDSCH, and correspondingly receive or decode the PDCCH and/or the PDSCH in the special subframe according to the symbols that can be occupied by the PDCCH and/or the PDSCH, so as to solve the problem that the resource utilization rate is low due to the fact that the gap symbol caused by the CCA cannot be excluded from the entire subframe at present, the channel utilization rate under the condition of discontinuous channel occupation is improved.
In addition, for any carrier, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal can flexibly select to exclude or not exclude the symbols occupied by the common channel according to whether the received indication information contains the common channel, so that the problem that the throughput is increased for the auxiliary carrier which is not configured with the corresponding common channel and is caused by the fact that the terminal still excludes the symbols occupied by the common channel according to the specific position occupied by the common channel is solved, and on the basis of improving the flexibility of the terminal in excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of the terminal in receiving or decoding the PDCCH and/or PDSCH are achieved.
Example eight:
the eighth embodiment of the present invention provides a terminal, which is a terminal entity device based on the same inventive concept as the terminal described in the fourth embodiment of the present invention. Specifically, as shown in fig. 9, which is a schematic structural diagram of the terminal according to the eighth embodiment of the present invention, the terminal may include a receiver 91 and a processor 92, where:
the receiver 91 may be configured to receive first carrier configuration information for a first carrier sent by a network side device, where the first carrier configuration information includes any one or more of the following information:
system broadcast information of a first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier; second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format;
the processor 92 may be configured to determine, according to the first carrier configuration information, whether the first carrier includes a common channel, and when the determination result is yes, when receiving or decoding a PDCCH and/or a PDSCH on a subframe in the first carrier, exclude symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
Specifically, the processor 92 is specifically configured to determine that the first carrier does not include a common channel if it is determined that the first carrier configuration information includes the first indication information or that the first carrier configuration information does not include the system broadcast information; alternatively, the first and second electrodes may be,
the method may specifically be configured to determine that the first carrier includes a common channel if it is determined that the first carrier configuration information does not include the first indication information or it is determined that the first carrier configuration information includes the system broadcast information.
Similarly, the processor 92 is specifically configured to determine, if it is determined that the second indication information is included in the first carrier configuration information, a common channel in the first carrier using an extended format; alternatively, the first and second electrodes may be,
the method may specifically be configured to determine that a common channel in a non-extended format is used in the first carrier if it is determined that the first carrier configuration information does not include the second indication information.
That is to say, in the technical solution of the eighth embodiment of the present invention, for any carrier configured for the terminal, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal may flexibly select to exclude or not exclude the symbol occupied by the common channel according to whether the received indication information includes the common channel, so as to solve the problem that the throughput is increased for the secondary carrier not configured with the corresponding common channel, which is currently existing, because the terminal still performs exclusion of the symbol occupied by the common channel according to the specific position occupied by the common channel, and on the basis of improving the flexibility of the terminal excluding the symbol occupied by the common channel, the effects of reducing the throughput loss and improving the flexibility of the terminal in receiving or decoding the PDCCH and/or PDSCH are achieved.
Example nine:
an ninth embodiment of the present invention provides a subframe processing method applicable to the network side device according to the first embodiment or the fifth embodiment of the present invention, as shown in fig. 10, which is a flowchart of the subframe processing method according to the ninth embodiment of the present invention, and the subframe processing method may include the following steps:
step 101: the method comprises the steps that network side equipment determines first carrier configuration information of a first auxiliary carrier of a terminal, wherein the first auxiliary carrier is a discontinuous carrier, the first carrier configuration information comprises the maximum continuous channel occupation duration and the channel sensing duration of the first auxiliary carrier, and the first carrier configuration information further comprises a starting reference time point of the channel occupation of the first auxiliary carrier and/or a starting reference time point of the channel sensing of the first auxiliary carrier.
Specifically, in the embodiment of the present invention, the first secondary carrier may generally refer to any discontinuous secondary carrier of at least one discontinuous secondary carrier configured for the terminal by a network side device such as a base station. Moreover, the first secondary carrier may be an unlicensed spectrum carrier, an asymmetric carrier, or a single downlink carrier, which is not described in detail in this embodiment of the present invention.
Further, it should be noted that, in the embodiment of the present invention, the determined channel occupancy start reference time point of the first secondary carrier may generally refer to a channel occupancy start point when the first secondary carrier occupies a channel any time, and the determined channel sensing start reference time point of the first secondary carrier may generally refer to a channel sensing start time point when the first secondary carrier senses a channel any time after the first secondary carrier starts occupying the channel, which is not limited in this embodiment of the present invention.
Step 102: the network side equipment sends the determined first carrier configuration information to the terminal, so that the terminal executes the following operations according to the received first carrier configuration information: determining a special subframe in the first secondary carrier, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration; and using other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
Specifically, the network side device may send the determined first carrier configuration information to the terminal through any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling, etc. And, the network side device may send any two pieces of information included in the first carrier configuration information to the terminal by using the same or different messages. Furthermore, the network side device may send any two pieces of information included in the first carrier configuration information to the terminal at the same time point or different time points, which is not limited in this embodiment of the present invention.
Further, in the embodiment of the present invention, before sending the determined first carrier configuration information to the terminal, the method may further include:
judging whether the first auxiliary carrier is a cross-scheduling carrier or not; and when the judgment result is yes, assigning the PDSCH initial symbol position for the first auxiliary carrier.
Accordingly, sending the determined first carrier configuration information to the terminal may include:
when the first auxiliary carrier is determined to be a cross-scheduling carrier, carrying symbol position indication information for indicating a PDSCH starting symbol position in the first carrier configuration information and sending the symbol position indication information to the terminal, so that after the terminal determines a special subframe in the first auxiliary carrier according to the first carrier configuration information, according to the PDSCH starting symbol position indicated in the symbol position indication information, each non-gap symbol after the PDSCH starting symbol position in the special subframe is used as a symbol which can be occupied by the PDSCH.
Further, in the embodiment of the present invention, after determining the first carrier configuration information of the first secondary carrier, the method may further include:
monitoring whether a channel corresponding to the first auxiliary carrier is occupied by other network side equipment in a time period corresponding to the channel monitoring duration;
and if the monitoring result is yes, sending a carrier release message to the terminal so that the terminal stops data receiving or decoding operation on the first auxiliary carrier according to the carrier release message.
Further, in the embodiment of the present invention, the method may further include:
determining second carrier configuration information of the first secondary carrier, where the second carrier configuration information may include any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel; second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
sending the determined second carrier configuration information to the terminal, so that the terminal performs the following operations according to the received second carrier configuration information:
judging whether the first auxiliary carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
That is to say, in the technical solution of the ninth embodiment of the present invention, for any discontinuous secondary carrier configured for a terminal, a network side device may determine carrier configuration information, such as a maximum channel continuous occupancy duration, a channel sensing duration, and a channel occupancy start reference time point and/or a channel sensing start reference time point of the discontinuous secondary carrier, and send the determined carrier configuration information to the terminal, so that the terminal determines a special subframe in the discontinuous secondary carrier according to the received carrier configuration information, and uses other symbols except gap symbols in the special subframe as symbols that can be occupied by a PDCCH and/or a PDSCH, and correspondingly receives or decodes the PDCCH and/or the PDSCH in the special subframe according to the determined symbols that can be occupied by the PDCCH and/or the PDSCH, therefore, the problem that the resource utilization rate is low due to the fact that the terminal cannot exclude the gap symbol caused by the CCA from the whole subframe at present is solved, and the channel utilization rate under the condition that the channel is not occupied continuously is improved.
In addition, for any carrier configured for the terminal, the network side equipment can send the indication information of whether the carrier contains the common channel or not to the terminal, so that when the terminal is receiving or decoding the PDCCH and/or PDSCH in the sub-frame of the carrier, the symbol occupied by the public channel can be flexibly selected to be excluded or not excluded according to the received indication information whether the public channel is included or not, thereby solving the problems that for the secondary carrier without configuring the corresponding common channel, since the terminal still performs the problem of throughput increase caused by the exclusion of symbols occupied by the common channel according to the specific position occupied by the common channel, on the basis of improving the flexibility of excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of receiving or decoding the PDCCH and/or the PDSCH by the terminal are achieved.
Example ten:
an embodiment of the present invention provides a subframe processing method applicable to a network side device according to the second or sixth embodiment of the present invention, where the subframe processing method includes the following steps:
the method comprises the following steps: the method comprises the following steps that network side equipment determines first carrier configuration information of a first carrier of a terminal, wherein the first carrier configuration information can contain any one or more of the following information:
system broadcast information of the first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier; second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format.
Specifically, the network side device may determine the first carrier configuration information of the first carrier when configuring the corresponding first carrier for the terminal, or may determine the first carrier configuration information of the first carrier after configuring the corresponding first carrier for the terminal, which is not limited in this embodiment of the present invention.
Further, in the embodiment of the present invention, the first carrier may be any discontinuous carrier or any continuous carrier configured by the network side device for the terminal, which is not limited in this embodiment of the present invention.
Step two: the network side equipment sends the determined first carrier configuration information to the terminal, so that the terminal executes the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier, and when the judgment result is yes, eliminating the symbols occupied by the common channel with the extended format from the symbols which can be occupied by the PDCCH and/or the PDSCH in the subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
That is to say, in the technical solution described in the tenth embodiment of the present invention, for any carrier configured for a terminal, a network side device may send indication information indicating whether the carrier includes a common channel to the terminal, so that when the terminal is receiving or decoding the PDCCH and/or PDSCH in the sub-frame of the carrier, the symbol occupied by the public channel can be flexibly selected to be excluded or not excluded according to the received indication information whether the public channel is included or not, thereby solving the problems that for the secondary carrier without configuring the corresponding common channel, since the terminal still performs the problem of throughput increase caused by the exclusion of symbols occupied by the common channel according to the specific position occupied by the common channel, on the basis of improving the flexibility of excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of receiving or decoding the PDCCH and/or the PDSCH by the terminal are achieved.
Example eleven:
an eleventh embodiment of the present invention takes an action executing party as an example of the terminal according to the third or seventh embodiment of the present invention, and further describes the subframe processing method according to the ninth embodiment of the present invention, as shown in fig. 11, which is a schematic flow chart of the subframe processing method according to the eleventh embodiment of the present invention, and the subframe processing method may include the following steps:
step 201: the method comprises the steps that a terminal obtains first carrier configuration information of a first auxiliary carrier, the first auxiliary carrier is a discontinuous carrier, and the first carrier configuration information comprises the maximum continuous channel occupation duration and the channel sensing duration of the first auxiliary carrier and further comprises an initial channel occupation reference time point and/or an initial channel sensing reference time point of the first auxiliary carrier.
Specifically, in the embodiment of the present invention, the first carrier configuration information may be configured and sent to the terminal by a network side device such as a base station. It should be noted that, of course, the first carrier configuration information may also be predefined according to a set rule and stored in the terminal, which is not limited in this embodiment of the present invention.
Further, when the first carrier configuration information is sent to the terminal by the network side device, the first carrier configuration information may be sent to the terminal by the network side device by using any one or more of the following signaling: RRC messages, MAC layer PDU messages, or physical layer signaling, etc. Any two pieces of information included in the first carrier configuration information may be sent to the terminal by the network side device using the same or different messages. Any two pieces of information included in the first carrier configuration information may be sent to the terminal by the network side device at the same time point or different time points, which is not limited in this embodiment of the present invention.
Step 202: and determining a special subframe in the first auxiliary carrier according to the acquired first carrier configuration information, wherein the special subframe comprises all or part of symbols of gap symbols, and the gap symbols are symbols which are fully occupied or partially occupied by the channel sensing duration.
Specifically, in the embodiment of the present invention, determining the special subframe in the first secondary carrier according to the acquired first carrier configuration information may include:
determining a channel occupation end time point or a channel interception start time point of the first auxiliary carrier according to information such as a channel continuous occupation maximum time length, a channel interception time length, a channel occupation start reference time point and/or a channel interception start reference time point included in the first carrier configuration information, taking the determined channel occupation end time point or M symbols after the determined channel interception start time point as the gap symbols, and taking a subframe containing all or part of the M symbols as the special subframe; wherein the M symbols may be determined by the channel sensing duration, and M is a positive integer greater than or equal to 1. Specifically, the M symbols may be one or more symbols that are occupied by all or part of the channel sensing duration, which is not described in detail herein.
Further, the channel occupancy of the first secondary carrier may be limited to end at a subframe boundary or not limited to end at a subframe boundary, and when the channel occupancy of the first secondary carrier ends at a subframe boundary, corresponding subframe boundary information needs to be obtained, such as subframe boundary information of a primary carrier of the terminal or subframe boundary information of a second secondary carrier; accordingly, when the channel occupancy of the first secondary carrier ends at the subframe boundary, the terminal further needs to perform subframe boundary detection to determine subframe boundary information, such as subframe boundary information of the primary carrier of the terminal or subframe boundary information of the second secondary carrier. Correspondingly, determining the special subframe in the discontinuous secondary carrier according to the acquired first carrier configuration information may include:
determining a channel occupation ending time point or a channel interception starting time point of the first auxiliary carrier according to the maximum continuous occupation time length of the channel, the channel interception time length, the channel occupation starting reference time point and/or the channel interception starting reference time point included in the first carrier configuration information and the detected subframe boundary information, taking the determined channel occupation ending time point or M symbols after the determined channel interception starting time point as the gap symbols, and taking a subframe containing all or part of the M symbols as the special subframe.
Step 203: and taking other symbols except the gap symbols in the special subframe as symbols which can be occupied by the PDCCH and/or the PDSCH, and correspondingly receiving or decoding the PDCCH and/or the PDSCH in the special subframe according to the determined symbols which can be occupied by the PDCCH and/or the PDSCH.
Specifically, regarding the other symbols except the gap symbol in the special subframe as the symbols that can be occupied by the PDCCH and/or PDSCH includes:
if it is determined that the first carrier configuration information carries symbol position indication information for indicating a starting symbol position of a PDSCH, taking each non-gap symbol after the starting symbol position of the PDSCH in the special subframe as a symbol which can be occupied by the PDSCH according to the starting symbol position of the PDSCH indicated in the symbol position indication information, wherein the symbol position indication information is sent to the terminal by a network side device when the first auxiliary carrier is determined to be a cross-scheduling carrier; alternatively, the first and second electrodes may be,
reading a PFICH from the 1 st symbol of the special subframe, determining symbols which can be occupied by a PDCCH according to the PFICH, and taking other symbols except the gap symbols and the symbols which can be occupied by the PDCCH in the special subframe as the symbols which can be occupied by the PDSCH; alternatively, the first and second electrodes may be,
reading a PFICH from the M +1 th symbol of the special subframe, determining a symbol which can be occupied by a PDCCH according to the PFICH, and taking other symbols except the gap symbol and the symbol which can be occupied by the PDCCH in the special subframe as the symbols which can be occupied by the PDSCH.
It should be noted that, when determining that the first carrier configuration information does not carry symbol position indication information for indicating a starting symbol position of the PDSCH, the terminal may perform the following operations: for any special subframe, reading a PFICH from the 1 st symbol of the special subframe or reading the PFICH from the M +1 th symbol of the special subframe, determining the symbols which can be occupied by a PDCCH according to the PFICH, and taking other symbols except the gap symbols and the symbols which can be occupied by the PDCCH in the special subframe as the symbols which can be occupied by the PDSCH.
Further, it should be noted that, in the embodiment of the present invention, for any special subframe, when it is determined that all symbols in the special subframe are gap symbols, that is, the channel sensing duration may occupy a duration occupied by the whole subframe, the terminal may further stop performing corresponding reception or decoding on the PDCCH and/or the PDSCH in the special subframe for the special subframe.
Further, in the embodiment of the present invention, the method may further include:
for any gap symbol, carrying out energy detection on the gap symbol; and stopping receiving or decoding a special subframe containing all or part of the gap symbols when the detected energy is determined to be higher than a set energy threshold;
and/or, the method may further comprise:
and monitoring whether a carrier release message aiming at the first auxiliary carrier from network side equipment is received, and if so, stopping data receiving or decoding operation on the first auxiliary carrier.
Further, in the embodiment of the present invention, the method may further include:
receiving second carrier configuration information for the first secondary carrier issued by a network side device, where the second carrier configuration information may include any one or more of the following information:
the system broadcast information of the first secondary carrier can indicate that the first secondary carrier contains a common channel, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, where the first indication information is used to indicate that the first secondary carrier does not include a common channel; second indication information, where the second indication information is used to indicate that a common channel used in the first secondary carrier is a common channel in an extended format;
judging whether the first auxiliary carrier contains a common channel or not according to the second carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first auxiliary carrier according to the second carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first auxiliary carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first secondary carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
Specifically, in the embodiment of the present invention, determining whether the first secondary carrier includes a common channel according to the second carrier configuration information may include:
if it is determined that the second carrier configuration information includes the first indication information or it is determined that the second carrier configuration information does not include the system broadcast information, determining that the first secondary carrier does not include a common channel; alternatively, the first and second electrodes may be,
and if the second carrier configuration information is determined not to contain the first indication information or the second carrier configuration information contains the system broadcast information, determining that the first auxiliary carrier contains a common channel.
Similarly, determining whether the first secondary carrier uses a common channel in an extended format according to the second carrier configuration information may include:
if the second carrier configuration information is determined to include the second indication information, determining a common channel using an extended format in the first secondary carrier; alternatively, the first and second electrodes may be,
and if the second carrier configuration information is determined to include the second indication information, determining that the common channel in the non-extended format is used in the first secondary carrier.
That is to say, in the technical solution described in the eleventh embodiment of the present invention, for any discontinuous secondary carrier, the terminal may determine, according to the obtained maximum duration of continuous channel occupancy of the discontinuous secondary carrier, the channel sensing duration, and the initial reference time point of channel occupancy and/or the initial reference time point of channel occupancy of the discontinuous secondary carrier, a special subframe in the discontinuous secondary carrier, where all or part of symbols of a gap symbol occupied by the channel sensing duration are included, and, for any special subframe, use other symbols in the special subframe except the gap symbol as symbols that can be occupied by a PDCCH and/or a PDSCH, and correspondingly receive or decode the PDCCH and/or the PDSCH in the special subframe according to the symbols that can be occupied by the PDCCH and/or the PDSCH, thereby solving the problem that the CCA is low in resource utilization due to the fact that the gap symbol caused by the inability to be excluded from the entire subframe in the present, the channel utilization rate under the condition of discontinuous channel occupation is improved.
In addition, for any carrier, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal can flexibly select to exclude or not exclude the symbols occupied by the common channel according to whether the received indication information contains the common channel, so that the problem that the throughput is increased for the auxiliary carrier which is not configured with the corresponding common channel and is caused by the fact that the terminal still excludes the symbols occupied by the common channel according to the specific position occupied by the common channel is solved, and on the basis of improving the flexibility of the terminal in excluding the symbols occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of the terminal in receiving or decoding the PDCCH and/or PDSCH are achieved.
Example twelve:
the twelfth embodiment of the present invention takes the executing party as an example of the terminal in the fourth embodiment or the eighth embodiment of the present invention, and further describes the subframe processing method in the tenth embodiment of the present invention, where the subframe processing method may include the following steps:
the method comprises the following steps: the terminal receives first carrier configuration information for a first carrier issued by a network side device, where the first carrier configuration information may include any one or more of the following information:
system broadcast information of a first carrier, wherein the system broadcast information can indicate that a common channel is contained in the first carrier, and the common channel comprises any one or more of PBCH, PSS, SSS or reference signals; first indication information, wherein the first indication information is used for indicating that no common channel is contained in the first carrier; second indication information, where the second indication information is used to indicate that a common channel used in the first carrier is a common channel in an extended format.
In the embodiment of the present invention, the first carrier may be any discontinuous carrier or any continuous carrier configured by the network side device for the terminal, which is not limited in this embodiment of the present invention.
Step two: judging whether the first carrier contains a common channel or not according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; alternatively, the first and second electrodes may be,
judging whether the common channel with the extended format is used in the first carrier according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel with the extended format from symbols which can be occupied by a PDCCH and/or a PDSCH in a subframe when the PDCCH and/or the PDSCH are received or decoded on the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel in the extended format from the symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
Specifically, in the embodiment of the present invention, determining whether the first carrier includes a common channel according to the first carrier configuration information may include:
if it is determined that the first carrier configuration information includes the first indication information or it is determined that the first carrier configuration information does not include the system broadcast information, determining that the first carrier does not include a common channel; alternatively, the first and second electrodes may be,
if it is determined that the first carrier configuration information does not include the first indication information, or it is determined that the first carrier configuration information includes the system broadcast information, it is determined that the first carrier includes a common channel.
Similarly, determining whether the first carrier uses a common channel in an extended format according to the first carrier configuration information may include:
if the first carrier configuration information is determined to include the second indication information, determining a common channel using an extended format in the first carrier; alternatively, the first and second electrodes may be,
if the first carrier configuration information is determined to include the second indication information, determining that a common channel using a non-extended format in the first carrier is used
That is to say, in the technical solution described in the twelfth embodiment of the present invention, for any carrier configured for the terminal, when the terminal receives or decodes the PDCCH and/or PDSCH in the subframe of the carrier, the terminal may flexibly select to exclude or not exclude the symbol occupied by the common channel according to whether the received indication information includes the common channel, so as to solve the problem that the throughput is increased for the secondary carrier not configured with the corresponding common channel, which is currently existing, because the terminal still performs exclusion of the symbol occupied by the common channel according to the specific position occupied by the common channel, and on the basis of improving the flexibility of the terminal excluding the symbol occupied by the common channel, the effects of reducing the throughput loss and improving the efficiency of the terminal in receiving or decoding the PDCCH and/or PDSCH are achieved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A network-side device, comprising:
a processor, configured to determine first carrier configuration information of a first carrier of a terminal, where the first carrier configuration information is used to indicate whether the first carrier includes a common channel;
a transmitter, configured to send the first carrier configuration information determined by the processor to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a Physical Downlink Control Channel (PDCCH) and/or a Physical Downlink Shared Channel (PDSCH) in a subframe when the subframe in the first carrier receives or decodes the PDCCH and/or the PDSCH; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
2. A terminal, comprising:
the receiver is configured to receive first carrier configuration information for a first carrier sent by a network side device, where the first carrier configuration information is used to indicate whether the first carrier includes a common channel;
a processor, configured to determine whether the first carrier includes a common channel according to the first carrier configuration information, and when a determination result is yes, when receiving or decoding a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH on a subframe in the first carrier, exclude symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
3. A method of processing a subframe, comprising:
determining first carrier configuration information of a first carrier of a terminal, wherein the first carrier configuration information is used for indicating whether the first carrier contains a common channel or not;
sending the determined first carrier configuration information to the terminal, so that the terminal performs the following operations according to the received first carrier configuration information:
judging whether the first carrier contains a common channel or not, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a Physical Downlink Control Channel (PDCCH) and/or a Physical Downlink Shared Channel (PDSCH) in a subframe when the subframe in the first carrier receives or decodes the PDCCH and/or the PDSCH; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
4. A method of processing a subframe, comprising:
receiving first carrier configuration information aiming at a first carrier sent by network side equipment, wherein the first carrier configuration information is used for indicating whether the first carrier contains a common channel or not;
judging whether the first carrier contains a common channel or not according to the first carrier configuration information, and when the judgment result is yes, eliminating symbols occupied by the common channel from symbols which can be occupied by a Physical Downlink Control Channel (PDCCH) and/or a Physical Downlink Shared Channel (PDSCH) in a subframe when receiving or decoding the PDCCH and/or the PDSCH in the subframe in the first carrier; or, when the determination result is negative, when receiving or decoding the PDCCH and/or the PDSCH on the subframe in the first carrier, not excluding symbols occupied by the common channel from symbols that can be occupied by the PDCCH and/or the PDSCH in the subframe.
5. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, cause a communication device to perform the method of claim 3.
6. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, cause a communication device to perform the method of claim 4.
7. A subframe processing apparatus, comprising a processor and a storage medium storing instructions that, when executed by the processor, cause the apparatus to perform the method of claim 3.
8. A subframe processing apparatus, comprising a processor and a storage medium storing instructions that, when executed by the processor, cause the apparatus to perform the method of claim 4.
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